blocks|key|104778|text|当您从.NET+4.x项目引用.NET标准项目时会出现此问题：.NET标准项目的任何nuget包引用都不会作为依赖项引入。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|104779|要解决这个问题，您需要确保您的.NET+4.x+csproj文件指向当前的构建工具(至少14个)：|104780|<Project+ToolsVersion="15.0">...|code-block|syntax|javascript|104781|在VS15.3版本中，不再需要了：|offset|length|style|BOLD|104782|在VS2017中有一个known+bug，特别是在NuGet+4.0中。|104783|要解决此错误，您需要打开.NET+4.x项目的.csproj文件并添加以下代码片段：|104784|<ItemGroup>
++<PackageReference+Include="Legacy2CPSWorkaround"+Version="1.0.0">
++++<PrivateAssets>All</PrivateAssets>
++</PackageReference>
</ItemGroup>|104785|VS4.x带来了“包参考”--不再有packages.config+--但旧的4.x流水线在NuGet+2017发布时并没有完全更新。上面的代码片段似乎“唤醒”了构建系统，使其能够正确地包含依赖项中的包引用。|104786|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/NuGet/Home/issues/4488^0|0|0|0|F|2|0|B|9|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|14|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|15|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|16|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|17|8|@$K|18|L|19|M|N]]|9|@]|A|$]]|$1|O|3|P|5|6|7|1A|8|@]|9|@$K|1B|L|1C|1|1D]]|A|$]]|$1|Q|3|R|5|6|7|1E|8|@]|9|@]|A|$]]|$1|S|3|T|5|F|7|1F|8|@]|9|@]|A|$G|H]]|$1|U|3|V|5|6|7|1G|8|@]|9|@]|A|$]]|$1|W|3|-4|5|6|7|1H|8|@]|9|@]|A|$]]]|X|$Y|$5|Z|10|11|A|$12|13]]]]

This issue happens when you reference a .NET Standard project from a .NET 4.x project: none of the .NET Standard project's nuget package references are brought in as dependencies.

To fix this, you need to ensure your .NET 4.x csproj file is pointing to current build tools (at least 14):

<pre><code>&lt;Project ToolsVersion="15.0"&gt;...
</code></pre>

The below should no longer be needed, it was fixed around VS 15.3:

There was a <a href="https://github.com/NuGet/Home/issues/4488" rel="noreferrer">known bug</a> in VS2017, specifically in NuGet 4.0.

To work around the bug, you'll need to open up the .csproj file for your .NET 4.x project and add this snippet:

<pre><code>&lt;ItemGroup&gt;
 &lt;PackageReference Include="Legacy2CPSWorkaround" Version="1.0.0"&gt;
 &lt;PrivateAssets&gt;All&lt;/PrivateAssets&gt;
 &lt;/PackageReference&gt;
&lt;/ItemGroup&gt;
</code></pre>

NuGet 4.x brings with it the "package reference" -- no more packages.config -- but the old 4.x pipeline was not fully updated at the time of VS2017's launch. The above snippet seems to "wake up" the build system to correctly include package references from dependencies.

blocks|key|105332|text|我在一个针对dotnet+framework+4.6.2的NUnit+2.6.4项目中遇到了这个问题。我在尝试使用Humanizer时遇到了System.Runtime+FileNotFound错误。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|105333|我通过在我的单元测试项目中安装NetStandard.Library修复了我的错误。|105334|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/Humanizr/Humanizer/|1|https://www.nuget.org/packages/NETStandard.Library^0|1Y|R|1L|9|0|0|F|J|1|0^^$0|@$1|2|3|4|5|6|7|R|8|@$9|S|A|T|B|C]]|D|@$9|U|A|V|1|W]]|E|$]]|$1|F|3|G|5|6|7|X|8|@]|D|@$9|Y|A|Z|1|10]]|E|$]]|$1|H|3|-4|5|6|7|11|8|@]|D|@]|E|$]]]|I|$J|$5|K|L|M|E|$N|O]]|P|$5|K|L|M|E|$N|Q]]]]

I had an issue with this in an NUnit 2.6.4 project targeting dotnet framework 4.6.2. I ran into that <code>System.Runtime FileNotFound</code> error trying to use <a href="https://github.com/Humanizr/Humanizer/" rel="nofollow noreferrer">Humanizer</a>.

I fixed my error by installing <a href="https://www.nuget.org/packages/NETStandard.Library" rel="nofollow noreferrer">NetStandard.Library</a> into my unit test project.

blocks|key|105343|text|我通过在NUnit-Project中引用NetStandard.Library和下面的app.config文件解决了这个错误。|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|105344|<?xml+version="1.0"+encoding="utf-8"?>
<configuration>
<runtime>
++++<assemblyBinding+xmlns="urn:schemas-microsoft-com:asm.v1">
++++++++<dependentAssembly>
++++++++++++<assemblyIdentity+name="System.Runtime"+publicKeyToken="b03f5f7f11d50a3a"+culture="neutral"+/>
++++++++++++<bindingRedirect+oldVersion="0.0.0.0-4.1.1.0"+newVersion="4.1.1.0"+/>
++++++++</dependentAssembly>
++++++++<dependentAssembly>
++++++++++++<assemblyIdentity+name="System.Reflection"+publicKeyToken="b03f5f7f11d50a3a"+culture="neutral"+/>
++++++++++++<bindingRedirect+oldVersion="0.0.0.0-4.1.1.0"+newVersion="4.1.1.0"+/>
++++++++</dependentAssembly>
++++++++<dependentAssembly>
++++++++++++<assemblyIdentity+name="System.Runtime.InteropServices"+publicKeyToken="b03f5f7f11d50a3a"+culture="neutral"+/>
++++++++++++<bindingRedirect+oldVersion="0.0.0.0-4.1.0.0"+newVersion="4.1.1.0"+/>
++++++++</dependentAssembly>
++++</assemblyBinding>
</runtime>|code-block|syntax|javascript|105345|​|105346|编辑|105347|如果缺少System.Runtime、System.Reflection或System.Runtime.InteropServices以外的任何内容(例如System.Linq)，则只需添加一个新的dependentAssembly节点。|CODE|105348|编辑2|105349|在新的Visual+Studio版本中(我认为是201715.8)，Studio创建app.config文件是可能的。只需在项目-属性-应用程序中选中自动生成绑定重定向应用程序复选框。|105350|📷|atomic|105351|105352|编辑3|105353|自动生成绑定重定向不能很好地与.NET类库一起使用。向csproj文件添加以下行可以解决这个问题，并为类库生成一个有效的.config文件。|105354|<PropertyGroup>
++<AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
++<GenerateBindingRedirectsOutputType>true</GenerateBindingRedirectsOutputType>
</PropertyGroup>|105355|entityMap|0|LINK|mutability|MUTABLE|url|https://www.nuget.org/packages/NETStandard.Library|1|IMAGE|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/3d25ea317c09b1af4620ecd16acd6ef6.png|imageAlt^0|17|A|K|J|0|0|0|0|0|2|0|4|E|J|H|11|U|25|B|2R|H|0|0|3|0|1Q|A|23|H|0|0|1|0|1|1|0|0|1|0|0|3|0|0|1Y|0|0|50|0^^$0|@$1|2|3|4|5|6|7|1J|8|@$9|1K|A|1L|B|C]]|D|@$9|1M|A|1N|1|1O]]|E|$]]|$1|F|3|G|5|H|7|1P|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|1Q|8|@]|D|@]|E|$]]|$1|M|3|N|5|6|7|1R|8|@$9|1S|A|1T|B|C]]|D|@]|E|$]]|$1|O|3|P|5|6|7|1U|8|@$9|1V|A|1W|B|Q]|$9|1X|A|1Y|B|Q]|$9|1Z|A|20|B|Q]|$9|21|A|22|B|Q]|$9|23|A|24|B|Q]]|D|@]|E|$]]|$1|R|3|S|5|6|7|25|8|@$9|26|A|27|B|C]]|D|@]|E|$]]|$1|T|3|U|5|6|7|28|8|@$9|29|A|2A|B|C]|$9|2B|A|2C|B|C]]|D|@]|E|$]]|$1|V|3|W|5|X|7|2D|8|@$9|2E|A|2F|B|C]]|D|@$9|2G|A|2H|1|2I]]|E|$]]|$1|Y|3|L|5|6|7|2J|8|@$9|2K|A|2L|B|C]]|D|@]|E|$]]|$1|Z|3|10|5|6|7|2M|8|@$9|2N|A|2O|B|C]]|D|@]|E|$]]|$1|11|3|12|5|6|7|2P|8|@$9|2Q|A|2R|B|C]]|D|@]|E|$]]|$1|13|3|14|5|H|7|2S|8|@$9|2T|A|2U|B|C]]|D|@]|E|$I|J]]|$1|15|3|-4|5|6|7|2V|8|@]|D|@]|E|$]]]|16|$17|$5|18|19|1A|E|$1B|1C]]|1D|$5|1E|19|1F|E|$1G|1H|1I|-4]]]]

I resolved that error by referencing the <a href="https://www.nuget.org/packages/NETStandard.Library" rel="nofollow noreferrer">NetStandard.Library</a> and the following app.config File in the NUnit-Project.

<pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
&lt;configuration&gt;
&lt;runtime&gt;
 &lt;assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1"&gt;
 &lt;dependentAssembly&gt;
 &lt;assemblyIdentity name="System.Runtime" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" /&gt;
 &lt;bindingRedirect oldVersion="0.0.0.0-4.1.1.0" newVersion="4.1.1.0" /&gt;
 &lt;/dependentAssembly&gt;
 &lt;dependentAssembly&gt;
 &lt;assemblyIdentity name="System.Reflection" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" /&gt;
 &lt;bindingRedirect oldVersion="0.0.0.0-4.1.1.0" newVersion="4.1.1.0" /&gt;
 &lt;/dependentAssembly&gt;
 &lt;dependentAssembly&gt;
 &lt;assemblyIdentity name="System.Runtime.InteropServices" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" /&gt;
 &lt;bindingRedirect oldVersion="0.0.0.0-4.1.0.0" newVersion="4.1.1.0" /&gt;
 &lt;/dependentAssembly&gt;
 &lt;/assemblyBinding&gt;
&lt;/runtime&gt;
</code></pre>



Edit

If anything other than <code>System.Runtime</code>, <code>System.Reflection</code> or <code>System.Runtime.InteropServices</code> is missing (e.g. <code>System.Linq</code>), then just add a new <code>dependentAssembly</code> node.

Edit 2

In new Visual Studio Versions (2017 15.8 I think) it's possible that Studio creates the app.config File. Just check the Auto-generate binding redirects Checkbox in Project-Properties - Application.
<a href="https://i.stack.imgur.com/YfuGh.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/YfuGh.png" alt="Auto-generate binding redirects"></a>

Edit 3 

Auto-generate binding redirects does not work well with .NET Classlibraries.
Adding the following lines to the csproj files solves this and a working .config file for the Classlibary will be generated.

<pre><code>&lt;PropertyGroup&gt;
 &lt;AutoGenerateBindingRedirects&gt;true&lt;/AutoGenerateBindingRedirects&gt;
 &lt;GenerateBindingRedirectsOutputType&gt;true&lt;/GenerateBindingRedirectsOutputType&gt;
&lt;/PropertyGroup&gt;
</code></pre>

blocks|key|107515|text|在我的.NET+4.6.1网站上，我有好几次都遇到了这种情况。每次当我添加对单独的.NET核心项目的引用时，我都会产生问题。在构建时，Visual+Studio正确地提醒我此类跨框架引用是无效的，于是我迅速删除了项目引用。项目在那之后构建得很好，但在访问网站时出现了System.Runtime错误，并且拒绝离开。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|107516|每次修复都很差劲，但却很有效:我删除了项目目录，并从源代码管理部门重新下载了它。尽管之前和之后没有区别，但我能够构建项目并访问页面，没有任何抱怨。|107517|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

I ended up in this situation several times with my .NET 4.6.1 web site. I created the problem each time when I added a reference to a separate .NET Core project. Upon building, Visual Studio correctly alerted me that such cross-framework references are invalid, and I quickly deleted the project reference. The project built fine after that, but the System.Runtime error appeared when accessing the web site and refused to go away.

The fix each time was lame but effective: I deleted the project directory and redownloaded it from source control. Even though there was no difference between before and after, I was able to build the project and access the page with no complaints.

blocks|key|2645406|text|我在VS201715.45中遇到了类似的问题-当我检查项目时发现，即使项目编译并运行，当我试图访问TPL数据流对象时，它也出现了关于System.Runtime的system.IO.FileNotFoundException。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2645407|当我检查解决方案中的项目时，其中一个(顶部的)缺少底层项目使用的System.Runtime包。一旦我从Nuget安装了它，一切都能正常工作。|2645408|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

I had a similar problem in VS 2017 15.45 - I found when I checked that even though the project compiled and ran it came up with a system.IO.FileNotFoundException with regard to System.Runtime when I tried to access TPL Dataflow objects.

When I checked the projects in the solution, one of them (the top one) was missing the System.Runtime package used by the underlying projects. Once I installed it from Nuget it all worked correctly.

blocks|key|2856885|text|我也有同样的问题，但我没有找到有效的建议解决方案。我对这个问题的解决方案是:检查App.config和packages.config，看看版本是否匹配。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2856886|最初我的app.config包含：|2856887|<dependentAssembly>
++<assemblyIdentity+name="System.Runtime"+publicKeyToken="b03f5f7f11d50a3a"+culture="neutral"+/>
++<bindingRedirect+oldVersion="0.0.0.0-4.1.1.0"+newVersion="4.1.1.0"+/>
</dependentAssembly>|code-block|syntax|javascript|2856888|但packages.config包含：|2856889|<package+id="System.Runtime"+version="4.3.0"+targetFramework="net461"+requireReinstallation="true"+/>|2856890|我修改了app.config条目以匹配newVersion的packages.config：|2856891|<dependentAssembly>
++<assemblyIdentity+name="System.Runtime"+publicKeyToken="b03f5f7f11d50a3a"+culture="neutral"+/>
++<bindingRedirect+oldVersion="0.0.0.0-4.1.1.0"+newVersion="4.3.0"+/>
</dependentAssembly>|2856892|更改后，问题得到了解决。|2856893|entityMap^0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|V|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|W|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|X|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|Y|8|@]|9|@]|A|$G|H]]|$1|M|3|N|5|6|7|Z|8|@]|9|@]|A|$]]|$1|O|3|P|5|F|7|10|8|@]|9|@]|A|$G|H]]|$1|Q|3|R|5|6|7|11|8|@]|9|@]|A|$]]|$1|S|3|-4|5|6|7|12|8|@]|9|@]|A|$]]]|T|$]]

I had the same problem and no suggested solutions that I found worked.
My solution for this issue was:
Check App.config and packages.config to see if the versions match.

Originally my app.config contained:

<pre><code>&lt;dependentAssembly&gt;
 &lt;assemblyIdentity name="System.Runtime" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" /&gt;
 &lt;bindingRedirect oldVersion="0.0.0.0-4.1.1.0" newVersion="4.1.1.0" /&gt;
&lt;/dependentAssembly&gt;
</code></pre>

But the packages.config contained:

<pre><code>&lt;package id="System.Runtime" version="4.3.0" targetFramework="net461" requireReinstallation="true" /&gt;
</code></pre>

I modified the app.config entry to match packages.config for the newVersion:

<pre><code>&lt;dependentAssembly&gt;
 &lt;assemblyIdentity name="System.Runtime" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" /&gt;
 &lt;bindingRedirect oldVersion="0.0.0.0-4.1.1.0" newVersion="4.3.0" /&gt;
&lt;/dependentAssembly&gt;
</code></pre>

After the change, the issue was resolved.

blocks|key|2856950|text|我们发现AutoGenerateBindingRedirects可能是导致此问题的原因。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2856951|观察到:同一个针对net45和netstandard1.5的项目在一台机器上成功构建，但在另一台机器上构建失败。机器上安装了不同版本的框架(4.6.1+-成功和4.7.1+-失败)。在将第一台机器上的框架升级到4.7.1之后，构建也失败了。|2856952|Error+Message:
+System.IO.FileNotFoundException+:+Could+not+load+file+or+assembly+'System.Runtime,+Version=4.1.0.0,+Culture=neutral,+PublicKeyToken=b03f5f7f11d50a3a'+or+one+of+its+dependencies.+The+system+cannot+find+the+file+specified.
++---->+System.IO.FileNotFoundException+:+Could+not+load+file+or+assembly+'System.Runtime,+Version=4.0.0.0,+Culture=neutral,+PublicKeyToken=b03f5f7f11d50a3a'+or+one+of+its+dependencies.+The+system+cannot+find+the+file+specified.|code-block|syntax|javascript|2856953|Auto+binding+redirects是.net+4.5.1的一个特性。当nuget检测到项目正在过渡地引用同一程序集的不同版本时，它将自动在输出目录中生成配置文件，将所有版本重定向到所需的最高版本。|2856954|在我们的例子中，它将所有版本的System.Runtime重新绑定到Version=4.1.0.0。.net+4.7.1附带了运行时的4.3.0.0版本。因此，重定向绑定映射到当代版本的框架中不可用的版本。|2856955|该问题已通过禁用4.5目标的自动绑定重定向并仅为.net核心保留而得到修复。|2856956|<PropertyGroup+Condition="'$(TargetFramework)'+==+'net45'">
++<AutoGenerateBindingRedirects>false</AutoGenerateBindingRedirects>
</PropertyGroup>|2856957|entityMap^0|4|S|0|9|5|F|E|0|0|0|M|N|A|0|F|E|Y|F|1E|A|1V|7|0|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@$9|X|A|Y|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|Z|8|@$9|10|A|11|B|C]|$9|12|A|13|B|C]]|D|@]|E|$]]|$1|H|3|I|5|J|7|14|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|15|8|@$9|16|A|17|B|C]|$9|18|A|19|B|C]]|D|@]|E|$]]|$1|O|3|P|5|6|7|1A|8|@$9|1B|A|1C|B|C]|$9|1D|A|1E|B|C]|$9|1F|A|1G|B|C]|$9|1H|A|1I|B|C]]|D|@]|E|$]]|$1|Q|3|R|5|6|7|1J|8|@]|D|@]|E|$]]|$1|S|3|T|5|J|7|1K|8|@]|D|@]|E|$K|L]]|$1|U|3|-4|5|6|7|1L|8|@]|D|@]|E|$]]]|V|$]]

We have found that <code>AutoGenerateBindingRedirects</code> might be causing this issue.

Observed: the same project targeting <code>net45</code> and <code>netstandard1.5</code> was successfully built on one machine and failed to build on the other. Machines had different versions of the framework installed (4.6.1 - success and 4.7.1 - failure). After upgrading framework on the first machine to 4.7.1 the build also failed.

<pre><code>Error Message:
 System.IO.FileNotFoundException : Could not load file or assembly 'System.Runtime, Version=4.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. The system cannot find the file specified.
 ----&gt; System.IO.FileNotFoundException : Could not load file or assembly 'System.Runtime, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. The system cannot find the file specified.
</code></pre>

<code>Auto binding redirects</code> is a feature of <code>.net 4.5.1</code>. Whenever nuget detects that the project is transitively referencing different versions of the same assembly it will automatically generate the config file in the output directory redirecting all the versions to the highest required version.

In our case it was rebinding all versions of <code>System.Runtime</code> to <code>Version=4.1.0.0</code>. <code>.net 4.7.1</code> ships with a <code>4.3.0.0</code> version of runtime. So redirect binding was mapping to a version that was not available in a contemporary version of framework.

The problem was fixed with disabling auto binding redirects for 4.5 target and leaving it for .net core only.

<pre><code>&lt;PropertyGroup Condition="'$(TargetFramework)' == 'net45'"&gt;
 &lt;AutoGenerateBindingRedirects&gt;false&lt;/AutoGenerateBindingRedirects&gt;
&lt;/PropertyGroup&gt;
</code></pre>

blocks|key|107588|text|我尝试了这里的所有解决方案，但都没有用。最后，我通过打开新的csproj文件并手动添加以下部分来解决这个问题：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|107589|<Reference+Include="System.Runtime,+Version=4.1.1.0,+Culture=neutral,+PublicKeyToken=b03f5f7f11d50a3a">
<HintPath>..\packages\System.Runtime.4.3.0\lib\net462\System.Runtime.dll</HintPath>
</Reference>|code-block|syntax|javascript|107590|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

I tried all the solutions here, but to no avail. Eventually, I solved it by opening the new csproj file and manually added the following section:

<pre><code>&lt;Reference Include="System.Runtime, Version=4.1.1.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"&gt;
&lt;HintPath&gt;..\packages\System.Runtime.4.3.0\lib\net462\System.Runtime.dll&lt;/HintPath&gt;
&lt;/Reference&gt;
</code></pre>

blocks|key|107599|text|相信我，我不是在开玩笑。从你的app.config中移除所有的System.Runtime依赖项，它就会开始工作。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|107600|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Trust me, I am not joking.
Remove all the System.Runtime dependencies from your app.config and it will start working.

blocks|key|104941|text|我通过删除我的app.config修复了这个问题|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|104942|<assemblyIdentity+name="System.Runtime"+....>+|code-block|syntax|javascript|104943|条目。|104944|重构过程中自动添加(但不需要)+app.config|104945|entityMap^0|7|A|0|0|0|G|A|0^^$0|@$1|2|3|4|5|6|7|Q|8|@$9|R|A|S|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|T|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|U|8|@]|D|@]|E|$]]|$1|M|3|N|5|6|7|V|8|@$9|W|A|X|B|C]]|D|@]|E|$]]|$1|O|3|-4|5|6|7|Y|8|@]|D|@]|E|$]]]|P|$]]

I fixed it by deleting my <code>app.config</code> with 

<pre><code>&lt;assemblyIdentity name="System.Runtime" ....&gt; 
</code></pre>

entries.

<code>app.config</code> was automatically added (but not needed) during refactoring

blocks|key|104949|text|我使用的是ASP.Net+Core2.1，当我从一个大型存储库的大约40个列表中选择一个.csproj运行时，我得到了这个错误。当我单独打开csproj文件时，错误被解决了。当打开csproj时，程序的启动方式有所不同。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|104950|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

I'm using ASP.Net CORE 2.1 and I got this error when I ran by selecting a .csproj from a list of about 40 in a big repo. When I opened the csproj file individually, the error was resolved. Something with how the program was launched was different when the csproj was opened.

blocks|key|2645583|text|在通过Nuget添加MsTest+V2之后，刚刚在单元测试项目中遇到了这个问题。重命名app.config+(因此有效地删除了它)为我做了这件事。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2645584|看了上面所有的帖子后，我仍然不知道为什么，对不起！|2645585|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

Ran into this just now in a Unit Test project after adding MsTest V2 through Nuget. Renaming app.config (so effectively removing it) did the trick for me.

Having read through all the above posts, I'm still not sure why, sorry!

blocks|key|2645604|text|我最近遇到了这个问题，我尝试了很多在这个帖子和其他帖子中提到的东西。我通过nuget包管理器为"System.Runtime"添加了包引用，修复了app.config中的绑定声明，并确保app.config和package.config具有相同的程序集版本。然而，这个问题仍然存在。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2645605|最后，我删除了程序集的<dependentAssembly>标记，问题就出现了。因此，尝试删除app.config中的以下内容。|2645606|<dependentAssembly>
++++<assemblyIdentity+name="System.Runtime"+publicKeyToken="b03f5f7f11d50a3a"+culture="neutral"+/>
++++<bindingRedirect+oldVersion="0.0.0.0-4.1.0.0"+newVersion="4.1.1.0"+/>
</dependentAssembly>|code-block|syntax|javascript|2645607|编辑：在我将.NET框架更新到4.7.2之后，问题再次浮出水面。我尝试了上面的技巧，但没有起作用。在浪费了很多小时之后，我意识到这个问题是由于app.config中的一个旧的System.Linq引用造成的。因此，删除或更新所有Linq引用也可以解决此问题。|BOLD|2645608|entityMap^0|1B|G|21|A|2L|A|2W|E|0|B|J|1B|A|0|0|0|3|2F|B|0^^$0|@$1|2|3|4|5|6|7|R|8|@$9|S|A|T|B|C]|$9|U|A|V|B|C]|$9|W|A|X|B|C]|$9|Y|A|Z|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|10|8|@$9|11|A|12|B|C]|$9|13|A|14|B|C]]|D|@]|E|$]]|$1|H|3|I|5|J|7|15|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|16|8|@$9|17|A|18|B|O]|$9|19|A|1A|B|C]]|D|@]|E|$]]|$1|P|3|-4|5|6|7|1B|8|@]|D|@]|E|$]]]|Q|$]]

I encounter this issue recently and I tried many things mentioned in this thread and others. I added package reference for <code>"System.Runtime"</code> by nuget package manager, fixed the binding redicts in <code>app.config</code>, and make sure that <code>app.config</code> and <code>package.config</code> have the same version for the assembly. However, the problem persisted. 

Finally, I removed the <code>&lt;dependentAssembly&gt;</code> tag for the assembly and the problem dissappeared. So, try removing the following in your <code>app.config</code>.

<pre><code>&lt;dependentAssembly&gt;
 &lt;assemblyIdentity name="System.Runtime" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" /&gt;
 &lt;bindingRedirect oldVersion="0.0.0.0-4.1.0.0" newVersion="4.1.1.0" /&gt;
&lt;/dependentAssembly&gt;
</code></pre>

Edit:
After I update .NET framework to 4.7.2, the problem resurfaced. I tried the above trick but it didn't work. After wasting many hours, I realized the problem is occurring because of an old <code>System.Linq</code> reference in app.config. Therefore, either remove or update all Linq references also to get rid of this problem.

blocks|key|104999|text|这个问题有很多原因...在我的例子中，问题是在我的web.config中添加了System.Runtime程序集的标记：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|105000|<assemblies>
++++<add+assembly="System.Runtime,+Version=4.0.0.0,+Culture=neutral,+PublicKeyToken=b03f5f7f11d50a3a"+/>
</assemblies>|code-block|syntax|javascript|105001|但一个包也添加了与其他版本依赖的相同程序集：|105002|<package+id="System.Runtime"+version="4.3.0"+targetFramework="net47"+/>|105003|从我的web.config中删除<add+assembly>标签解决了问题。|105004|entityMap^0|P|A|13|E|0|0|0|0|3|A|G|E|0^^$0|@$1|2|3|4|5|6|7|S|8|@$9|T|A|U|B|C]|$9|V|A|W|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|X|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|Y|8|@]|D|@]|E|$]]|$1|M|3|N|5|H|7|Z|8|@]|D|@]|E|$I|J]]|$1|O|3|P|5|6|7|10|8|@$9|11|A|12|B|C]|$9|13|A|14|B|C]]|D|@]|E|$]]|$1|Q|3|-4|5|6|7|15|8|@]|D|@]|E|$]]]|R|$]]

This issue has many causes... in my case the problem was that in my <code>web.config</code> a tag adding the <code>System.Runtime</code> assembly:
<pre><code>&lt;assemblies&gt;
 &lt;add assembly=&quot;System.Runtime, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a&quot; /&gt;
&lt;/assemblies&gt;
</code></pre>
but one package also added the same assembly as dependency with other version:
<pre><code>&lt;package id=&quot;System.Runtime&quot; version=&quot;4.3.0&quot; targetFramework=&quot;net47&quot; /&gt;
</code></pre>
removing the <code>&lt;add assembly&gt;</code> tag from my <code>web.config</code> resolved the issue.

blocks|key|105006|text|我通过删除Nuget包System.Runtime然后重新安装修复了这个问题|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|105007|entityMap^0|B|E|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|K|8|@]|D|@]|E|$]]]|G|$]]

I fixed the problem by removing the Nuget Package <code>System.Runtime</code> and then reinstalling it

blocks|key|105009|text|当您从.NET+4.x项目引用.NET标准项目时会出现此问题：.NET标准项目的任何nuget包引用都不会作为依赖项引入。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|105010|我通过添加System.Runtime+4.3和NETStandard.Library包和解决了这个问题！！重要！！我使用重构工具查找4.3版本，它是System.Runtime.dll+4.1.1.1+.config，然后在.config中添加bindingRedirect|offset|length|style|CODE|BOLD|105011|<dependentAssembly>
++++<assemblyIdentity+name="System.Runtime"+publicKeyToken="b03f5f7f11d50a3a"+culture="neutral"+/>
++++<bindingRedirect+oldVersion="0.0.0.0-5.0.0.0"+newVersion="4.1.1.1"+/>
</dependentAssembly>|code-block|syntax|javascript|105012|entityMap^0|0|K|3|1V|3|2M|7|19|1K|31|B|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Q|8|@$D|R|E|S|F|G]|$D|T|E|U|F|G]|$D|V|E|W|F|G]|$D|X|E|Y|F|H]|$D|Z|E|10|F|H]]|9|@]|A|$]]|$1|I|3|J|5|K|7|11|8|@]|9|@]|A|$L|M]]|$1|N|3|-4|5|6|7|12|8|@]|9|@]|A|$]]]|O|$]]

This issue happens when you reference a .NET Standard project from a .NET 4.x project: none of the .NET Standard project's nuget package references are brought in as dependencies.

I resolved by add System.Runtime <code>4.3</code> and NETStandard.Library package and !!important!! I use refactor tool to look up the System.Runtime.dll version, It is <code>4.1.1.1</code> not <code>4.3</code> and then add an bindingRedirect in .config

<pre><code>&lt;dependentAssembly&gt;
 &lt;assemblyIdentity name="System.Runtime" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" /&gt;
 &lt;bindingRedirect oldVersion="0.0.0.0-5.0.0.0" newVersion="4.1.1.1" /&gt;
&lt;/dependentAssembly&gt;
</code></pre>

blocks|key|105014|text|我通过从.NET+4.7.2+=>+.NET+4.5.2切换到472来解决这个问题。因此，在某些情况下，出现此错误是因为包管理器无法解析依赖项|type|unstyled|depth|inlineStyleRanges|entityRanges|data|105015|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

I solve this issue by switching from .NET 4.7.2 => .NET 4.5.2 and then switch back to 472.
So in some cases this error occurs because package manager unable resolve dependences

blocks|key|2645704|text|添加到app.config或web.config中|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2645705|<dependentAssembly>
++++<assemblyIdentity+name="System.Runtime"+publicKeyToken="b03f5f7f11d50a3a"+culture="neutral"/>
++++<bindingRedirect+oldVersion="0.0.0.0-5.0.0.0"+newVersion="4.0.0.0"/>
</dependentAssembly>|code-block|syntax|javascript|2645706|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Into app.config or web.config add

<pre><code>&lt;dependentAssembly&gt;
 &lt;assemblyIdentity name="System.Runtime" publicKeyToken="b03f5f7f11d50a3a" culture="neutral"/&gt;
 &lt;bindingRedirect oldVersion="0.0.0.0-5.0.0.0" newVersion="4.0.0.0"/&gt;
&lt;/dependentAssembly&gt;
</code></pre>

blocks|key|105044|text|如果它以前是有效的，那么应该有一个App.config更改。Undo+App.config为我工作。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|105045|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

If it's working previously, then there should be an App.config change. Undo App.config worked for me.

blocks|key|2645775|text|我有一个有同样问题的项目，我用将dotnet核心版本从2.2改为2.0来解决它，如果你的问题仍然存在，请尝试这个解决方案|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2645776|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

I had a project with the same problem , I solved it with change dotnet core version from 2.2 to 2.0,
If your problem has remained , Try this solution

blocks|key|2645778|text|我知道为时已晚，然而，没有一个成功的答案。我在另一个网站上找到了答案。我修复了删除System.Runtime程序集依赖项时的问题。我删掉了这个。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2645779|<dependentAssembly>+<assemblyIdentity+name="System.Runtime"+publicKeyToken="b03f5f7f11d50a3a"+culture="neutral"/>+<bindingRedirect+oldVersion="0.0.0.0-4.1.2.0"+newVersion="4.1.2.0"/>+</dependentAssembly>|offset|length|style|CODE|2645780|诚挚的问候|2645781|entityMap^0|0|0|5N|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|M|8|@$D|N|E|O|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|P|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|K|$]]

it is too late I know, howewer there is no succesfully answer. I found the answer from another website. I fixed the issue when I delete the System.Runtime assemblydependency. I deleted this.

<code>&lt;dependentAssembly&gt;
&lt;assemblyIdentity name="System.Runtime" publicKeyToken="b03f5f7f11d50a3a" culture="neutral"/&gt;
&lt;bindingRedirect oldVersion="0.0.0.0-4.1.2.0" newVersion="4.1.2.0"/&gt;
&lt;/dependentAssembly&gt;</code>


Best Regards

blocks|key|2645820|text|我也经历了这个错误，并分享了我是如何摆脱它的。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2645821|在我的例子中，以下代码行存在于webapi项目的web.config中，但在package.config文件中没有包引用。|2645822|Webapi项目中Web.config中的代码|offset|length|style|BOLD|2645823|<dependentAssembly>
++++<assemblyIdentity+name="System.Runtime"+publicKeyToken="B03F5F7F11D50A3A"+culture="neutral"+/>
++++<bindingRedirect+oldVersion="0.0.0.0-4.1.2.0"+newVersion="4.3.0"+/>
</dependentAssembly>|code-block|syntax|javascript|2645824|在关闭元素之前，我在web+api项目的packages.config文件中添加了代码。|2645825|<package+id="System.Runtime"+version="4.3.0"+targetFramework="net461"+/>|2645826|在我的案例中，另一个解决方案是：|2645827|如果您将项目复制到另一个计算机系统，而该计算机系统的包版本可能稍有不同，您可以尝试将程序集版本更改为在运行时在website+/+webapi上给出的错误版本。如本例所示，需要的版本是'4.1.0.0‘，因此只需尝试将web.config中的当前版本更改为错误中显示的版本，如下所示|2645828|错误：|2645829|Could+not+load+file+or+assembly+'System.Runtime,+Version=4.1.0.0'+or+one+of+its+dependencies|2645830|​|2645831|📷|atomic|2645832|2645833|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/01fc7f791769f92307174ffca5936e8b.png|imageAlt^0|0|0|L|2|0|0|0|18|0|0|0|G|0|0|3X|0|0|3|0|0|0|1|0|0|1|0|1|0|0|0|1|0^^$0|@$1|2|3|4|5|6|7|1F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|1G|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|1H|8|@$F|1I|G|1J|H|I]]|9|@]|A|$]]|$1|J|3|K|5|L|7|1K|8|@]|9|@]|A|$M|N]]|$1|O|3|P|5|6|7|1L|8|@$F|1M|G|1N|H|I]]|9|@]|A|$]]|$1|Q|3|R|5|L|7|1O|8|@]|9|@]|A|$M|N]]|$1|S|3|T|5|6|7|1P|8|@$F|1Q|G|1R|H|I]]|9|@]|A|$]]|$1|U|3|V|5|6|7|1S|8|@$F|1T|G|1U|H|I]]|9|@]|A|$]]|$1|W|3|X|5|6|7|1V|8|@$F|1W|G|1X|H|I]]|9|@]|A|$]]|$1|Y|3|Z|5|L|7|1Y|8|@]|9|@]|A|$M|N]]|$1|10|3|11|5|6|7|1Z|8|@$F|20|G|21|H|I]]|9|@]|A|$]]|$1|12|3|13|5|14|7|22|8|@$F|23|G|24|H|I]]|9|@$F|25|G|26|1|27]]|A|$]]|$1|15|3|11|5|6|7|28|8|@$F|29|G|2A|H|I]]|9|@]|A|$]]|$1|16|3|-4|5|6|7|2B|8|@]|9|@]|A|$]]]|17|$18|$5|19|1A|1B|A|$1C|1D|1E|-4]]]]

I have also gone through this error and sharing how i got rid off to it.

In my case below line existed in web.config of webapi project but there was not package reference in package.config file.

Code in Web.config in Webapi Project

<pre><code>&lt;dependentAssembly&gt;
 &lt;assemblyIdentity name="System.Runtime" publicKeyToken="B03F5F7F11D50A3A" culture="neutral" /&gt;
 &lt;bindingRedirect oldVersion="0.0.0.0-4.1.2.0" newVersion="4.3.0" /&gt;
&lt;/dependentAssembly&gt;
</code></pre>

Code I Added in packages.config file in web api project Before closing of element.

<pre><code>&lt;package id="System.Runtime" version="4.3.0" targetFramework="net461" /&gt;
</code></pre>

Another Solution Worked in My Case:

Another Sure short that may work in case you copied project to another Computer system that may have little different package versions that you can try changing assembly version to version given in error on website / webapi when you run it. Like in this case as given in question Version needed is '4.1.0.0' so simply try changing current version in web.config to version shown in error as below

Error:

<pre><code>Could not load file or assembly 'System.Runtime, Version=4.1.0.0' or one of its dependencies
</code></pre>

<a href="https://i.stack.imgur.com/Jsenu.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Jsenu.png" alt="Version CHange"></a>

blocks|key|2857280|text|这个问题似乎是在packages.config和app.config之间存在版本冲突时造成的。在app.config中，称为"AutoGenerateBindingRedirects“的东西会自动生成程序集绑定重定向。当你每次下载nuget包时启用它，除了在packages.config中创建新的条目之外，还会将这个绑定重定向信息添加到app.config，这里解释了它的用途：Assembly+Binding+redirect:+How+and+Why?|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|2857281|在那里你可以读到user+@Evk写的内容：|2857282|2857283|为什么需要绑定重定向？假设您有引用库B的应用程序A，以及版本为1.1.2.5的库C。库B反过来也引用了库C，但版本为1.1.1.0。现在我们有了一个冲突，因为您不能在运行时加载同一程序集的不同版本。要解决此冲突，可以使用绑定重定向，通常重定向到新版本|blockquote|2857284|2857285|2857286|因此，快速修复：删除app.config中的所有条目。|style|BOLD|2857287|在我的例子中，程序开始工作，但它可能只有在运行时没有任何相同程序集的版本冲突的情况下才能工作。|2857288|如果您确实有这样的冲突，您应该在app.config中修复这些版本号以匹配实际使用的程序集版本，但是手动过程是痛苦的，所以我建议通过打开包管理器控制台自动生成它们，并通过键入+Update-Package+-reinstall执行包重新安装|CODE|2857289|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/43365736/assembly-binding-redirect-how-and-why^0|5A|13|0|0|0|0|0|0|0|3|O|0|0|1U|L|2G|P|0^^$0|@$1|2|3|4|5|6|7|12|8|@]|9|@$A|13|B|14|1|15]]|C|$]]|$1|D|3|E|5|6|7|16|8|@]|9|@]|C|$]]|$1|F|3|-4|5|6|7|17|8|@]|9|@]|C|$]]|$1|G|3|H|5|I|7|18|8|@]|9|@]|C|$]]|$1|J|3|-4|5|6|7|19|8|@]|9|@]|C|$]]|$1|K|3|-4|5|6|7|1A|8|@]|9|@]|C|$]]|$1|L|3|M|5|6|7|1B|8|@$A|1C|B|1D|N|O]]|9|@]|C|$]]|$1|P|3|Q|5|6|7|1E|8|@]|9|@]|C|$]]|$1|R|3|S|5|6|7|1F|8|@$A|1G|B|1H|N|O]|$A|1I|B|1J|N|T]]|9|@]|C|$]]|$1|U|3|-4|5|6|7|1K|8|@]|9|@]|C|$]]]|V|$W|$5|X|Y|Z|C|$10|11]]]]

Seems like the issue is caused when there is version conflict between packages.config and app.config. In app.config you have assembly binding redirects automatically generated by thing called "AutoGenerateBindingRedirects". When enabled each time you download nuget package it will, additionaly to making new entry in packages.config, add this binding redirect information to app.config, what's the purpose of this is explained here: <a href="https://stackoverflow.com/questions/43365736/assembly-binding-redirect-how-and-why">Assembly Binding redirect: How and Why?</a>

There you can read what user @Evk wrote:

<blockquote>
 Why are binding redirects needed at all? Suppose you have application
 A that references library B, and also library C of version 1.1.2.5.
 Library B in turn also references library C, but of version 1.1.1.0.
 Now we have a conflict, because you cannot load different versions of
 the same assembly at runtime. To resolve this conflict you might use
 binding redirect, usually to the new version
</blockquote>

So,
QUICK FIX:
Remove all entries in app.config.

In my case just by doing that program started working, but it will probably work only if you don't have any version conflicts of the same assembly at runtime.

If you do have such conflict you should fix these version numbers in app.config to match actually used versions of assemblies, but manual process is painful, so I suggest to auto-generate them again by opening Package Manager Console and perform packages reinstallation by typing <code>Update-Package -reinstall</code>

blocks|key|105639|text|我在构建Azure函数时发生了这个错误(使用队列触发器，应该会有所不同)|type|unstyled|depth|inlineStyleRanges|entityRanges|data|105640|本例中的问题是因为AzureFunctionsVersion被设置为v2而不是v3。要通过VS2019更新它，请卸载项目，然后编辑csproj文件。在PropertyGroup节点中，添加/编辑以下内容：|offset|length|style|CODE|105641|<PropertyGroup>
++<AzureFunctionsVersion>v3</AzureFunctionsVersion>
</PropertyGroup>|code-block|syntax|javascript|105642|entityMap^0|0|9|L|23|D|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@$D|Q|E|R|F|G]|$D|S|E|T|F|G]]|9|@]|A|$]]|$1|H|3|I|5|J|7|U|8|@]|9|@]|A|$K|L]]|$1|M|3|-4|5|6|7|V|8|@]|9|@]|A|$]]]|N|$]]

I had this error occur when building an Azure Function (with a queue trigger, should it make a difference)

The issue in this case was because the <code>AzureFunctionsVersion</code> was set to v2 instead of v3. To update it via VS2019, unload the project then edit the csproj file. Within the <code>PropertyGroup</code> node, add/edit the following:

<pre><code>&lt;PropertyGroup&gt;
 &lt;AzureFunctionsVersion&gt;v3&lt;/AzureFunctionsVersion&gt;
&lt;/PropertyGroup&gt;
</code></pre>

blocks|key|107758|text|在运行单元测试之前，只需从app.config文件中删除运行时标记即可。问题会迎刃而解。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|107759|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Before running the unit tests, just remove the runtime tags from app.config file. Problem will be solved.

blocks|key|2857377|text|对我来说，这是丢失的'web.config‘文件。在asp+net+core+3.1+app中添加到部署的工程目录后，问题就解决了。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2857378|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

For me, it was the missing 'web.config' file. After adding it to the deployed project directory in asp net core 3.1 app, the problem was solved.

blocks|key|105660|text|在我的例子中，我只是删除了解决方案根目录中packages文件夹中的所有内容。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|105661|我曾尝试在具有ASP.NET+4.6.1项目的解决方案中添加对.NET+Core+3.1+Class+Library项目的引用。然后我开始得到相同的错误，除了版本：Could+not+load+file+or+assembly+'System.Runtime,+Version=4.2.2.0,+Culture=neutral,+PublicKeyToken=b03f5f7f11d50a3a'。|105662|entityMap^0|L|8|0|7|D|V|R|2A|37|0^^$0|@$1|2|3|4|5|6|7|J|8|@$9|K|A|L|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|M|8|@$9|N|A|O|B|C]|$9|P|A|Q|B|C]|$9|R|A|S|B|C]]|D|@]|E|$]]|$1|H|3|-4|5|6|7|T|8|@]|D|@]|E|$]]]|I|$]]

In my case, I just deleted all the content in the <code>packages</code> folder in the solution's root directory.
I had tried to add a reference to a <code>.NET Core 3.1 Class Library</code> project to the solution having an <code>ASP.NET 4.6.1</code> project. Then I started to get the same error except for the version: <code>Could not load file or assembly 'System.Runtime, Version=4.2.2.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'</code>.

blocks|key|2857391|text|我有同样的问题，关闭和重新打开项目为我解决了这个问题。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2857392|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

I had the same issue closing and reopening the project fixed the issue for me.

I am using Visual Studio 2017 and am trying to create a .Net Standard 1.5 library and use it in a .Net 4.6.2 nUnit test project. 

I am getting the following error...

<blockquote>
 Could not load file or assembly 'System.Runtime, Version=4.1.0.0,
 Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its
 dependencies. The system cannot find the file specified.
</blockquote>

I have tried the following:

<ol>
<li>Reference Std library as project reference. Error: gives me the previous error.</li>
<li>Create a NuGet pkg for my Std library and reference that. Error: The type is System.String, expecting System.String. This is because System.Runtime ended up getting referenced by the project and it has definitions for all the standard types.</li>
<li>Reference NuGet pkg NetStandard.Library. Error: give me the same error as # ("The type is System.String, expecting System.String"). NOTE: Before I did this, I cleared ALL NuGet packages from the project and then added just the nUnit and NetStandard.Library packages (which installed 45 other packages).</li>
</ol>

Is this a bug? Is there a work-around? Any help is appreciated.

Visual Studio 2017 - Could not load file or assembly 'System.Runtime, Version=4.1.0.0' or one of its dependencies

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我正在使用Visual Studio2017，并试图创建一个.Net标准1.5库，并在.Net 4.6.2 nUnit测试项目中使用它。我收到以下错误...无法加载文件或程序集“System.Runtime，Version=4.1.0.0，Culture=neutral，PublicKeyToken=b03f5f7f1...

问Visual Studio 2017 -无法加载文件或程序集“System.Runtime，Version=4.1.0.0”或其依赖项之一
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