blocks|key|763851|text|我很肯定你有32位/64位的矛盾。听起来，您的主项目可能设置为32位，而其引用的类则设置为64位。试着看看这个问题和这个也是。在他们之间，你应该能解决你的问题。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|763852|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/8996653/troubleshooting-badimageformatexception|1|https://stackoverflow.com/questions/4340362/system-badimageformatexception-an-attempt-was-made-to-load-a-program-with-an-inc^0|1H|4|0|1M|4|1|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@$A|O|B|P|1|Q]|$A|R|B|S|1|T]]|C|$]]|$1|D|3|-4|5|6|7|U|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]|L|$5|G|H|I|C|$J|M]]]]

I am pretty sure you're having a 32-bit / 64-bit conflict. It sounds like your main project might be set to 32-bit while the class its referencing is set to 64-bit. Try looking at <a href="https://stackoverflow.com/questions/8996653/troubleshooting-badimageformatexception">this SO question</a> and <a href="https://stackoverflow.com/questions/4340362/system-badimageformatexception-an-attempt-was-made-to-load-a-program-with-an-inc">this one too</a>. Between the two of them, you should be able to figure out your problem.

blocks|key|761621|text|我也有同样的问题。我已经将项目A的“平台目标”(“项目A”(右键单击)->Properties->Build->+"Platform“)设置为x86，但将项目B设置为”任意CPU“。将项目B设置为"x86“，修复了这个问题。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|761622|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 this same problem. I had set Project A's "Platform Target" ("Project A"(Right Click)->Properties->Build->"Platform Target") to x86 but kept Project B's at "Any CPU". Setting Project B's to "x86" fixed this.

blocks|key|1542363|text|同一解决方案中的多个项目也有相同的问题，我最终将所有目标框架设置为目标CPU的.NET框架4和x86，并最终成功编译。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1542364|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 with multiple projects in the same solution, i ended up setting all of the target frameworks to .NET Framework 4 and x86 for the target CPU and it finally successfully compiled.

blocks|key|761643|text|我也遇到过同样的问题。它突然冒了出来，我觉得很奇怪。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|761644|在异常快照中，对于FusionLog，我在它的消息中看到了以下内容：|761645|..。C:\Windows\Microsoft.NET\Framework64+...|761646|更多关于融合日志的信息：http://msdn.microsoft.com/en-us/library/e74a18c4(v=vs.110).aspx|offset|length|761647|所有的项目都有一个AnyCPU的目标CPU。我将应用程序项目(引用所有其他项目的项目)更改为x86的目标CPU。现在起作用了。|761648|不确定目标CPU是如何在没有明显原因的情况下出现的，但它确实发生了。|761649|entityMap|0|LINK|mutability|MUTABLE|url|http://msdn.microsoft.com/en-us/library/e74a18c4(v=vs.110).aspx^0|0|0|0|C|1R|0|0|0|0^^$0|@$1|2|3|4|5|6|7|V|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|W|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|X|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|Y|8|@]|9|@$H|Z|I|10|1|11]]|A|$]]|$1|J|3|K|5|6|7|12|8|@]|9|@]|A|$]]|$1|L|3|M|5|6|7|13|8|@]|9|@]|A|$]]|$1|N|3|-4|5|6|7|14|8|@]|9|@]|A|$]]]|O|$P|$5|Q|R|S|A|$T|U]]]]

I encountered the same issue. It popped up out of the blue and that seemed strange to me.

In the Exception snapshot, for the FusionLog, I saw the following within its message:

... C:\Windows\Microsoft.NET\Framework64 ...

More about the fusion log: <a href="http://msdn.microsoft.com/en-us/library/e74a18c4(v=vs.110).aspx" rel="nofollow">http://msdn.microsoft.com/en-us/library/e74a18c4(v=vs.110).aspx</a>

All the projects had a Target CPU of AnyCPU. I changed the application project (the project that references all the other projects) to a Target CPU of x86. It now works.

Not sure how the Target CPU mix up occurred for no apparent reason, but it did.

blocks|key|1542433|text|如果项目中至少有一个32位dll\exe，您可能需要将应用程序池设置“启用32位应用程序”更改为在IIS7中为真。|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|1542434|entityMap^0|R|5|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|$]]

You may need to change the Appication Pool setting "Enable 32bit Applications" to TRUE in IIS7 if you have at least 1 32bit dll\exe in your project.

blocks|key|1542488|text|可能是您在服务器上部署后，您的网站正面临问题。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1542489|然后，您需要调整应用程序池以使启用32位应用程序。|offset|length|style|BOLD|1542490|步骤|1542491|打开IIS管理器|ordered-list-item|1542492|点击应用程序池|1542493|选择正在使用的任何应用程序池。|1542494|从右窗格中，单击“高级设置”。|1542495|将启用32位应用程序设置为True|1542496|📷|atomic|1542497|1542498|​|1542499|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://developer.qcloudimg.com/http-save/yehe-900000/24373ab85981c7a1116efe80efe2a642.png|imageAlt|1|https://developer.qcloudimg.com/http-save/yehe-900000/baa3b2a67af41c8b7f8154db697338f9.png^0|0|F|9|0|0|0|0|0|0|0|0|1|0|0|0|1|1|0|0^^$0|@$1|2|3|4|5|6|7|1B|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|1C|8|@$D|1D|E|1E|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|1F|8|@]|9|@]|A|$]]|$1|J|3|K|5|L|7|1G|8|@]|9|@]|A|$]]|$1|M|3|N|5|L|7|1H|8|@]|9|@]|A|$]]|$1|O|3|P|5|L|7|1I|8|@]|9|@]|A|$]]|$1|Q|3|R|5|L|7|1J|8|@]|9|@]|A|$]]|$1|S|3|T|5|L|7|1K|8|@]|9|@]|A|$]]|$1|U|3|V|5|W|7|1L|8|@]|9|@$D|1M|E|1N|1|1O]]|A|$]]|$1|X|3|V|5|W|7|1P|8|@]|9|@$D|1Q|E|1R|1|1S]]|A|$]]|$1|Y|3|Z|5|6|7|1T|8|@]|9|@]|A|$]]|$1|10|3|-4|5|6|7|1U|8|@]|9|@]|A|$]]]|11|$12|$5|13|14|15|A|$16|17|18|-4]]|19|$5|13|14|15|A|$16|1A|18|-4]]]]

Might be you are facing the problem with your website after deploying on server.

Then you need to adjust your application pool to Enable 32-Bit Applications.

<h3>Steps</h3>

<ol>
<li>Open IIS Manager</li>
<li>Click on Application Pools</li>
<li>Select whatever application pool you are using</li>
<li>From right pane, click Advanced Settings...</li>
<li>Set Enable 32-Bit Applications to True

<a href="https://i.stack.imgur.com/NPaHW.png" rel="noreferrer"><img src="https://i.stack.imgur.com/NPaHW.png" alt="Advanced Settings"></a>
<a href="https://i.stack.imgur.com/zJj4b.png" rel="noreferrer"><img src="https://i.stack.imgur.com/zJj4b.png" alt="Enable 32-Bit"></a></li>
</ol>

blocks|key|1542576|text|我在一个项目中也面临着这个问题，几分钟后我找到了解决方案，这个问题是由于CPU配置造成的，如果您使用的是Visual+2010或VS+2013，那么只需使用goto+project的属性，然后从侧栏中选择Compile，就会有5次下拉，第5次下拉式是Target+CPU:，您应该根据自己的需求将其设置为x86或x64。|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|1542577|我的问题在改为x86后得到了解决。|1542578|entityMap^0|1G|J|2J|2|2U|7|3H|B|48|7|0|0^^$0|@$1|2|3|4|5|6|7|J|8|@$9|K|A|L|B|C]|$9|M|A|N|B|C]|$9|O|A|P|B|C]|$9|Q|A|R|B|C]|$9|S|A|T|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|U|8|@]|D|@]|E|$]]|$1|H|3|-4|5|6|7|V|8|@]|D|@]|E|$]]]|I|$]]

I also face this problem in a project, after a few minutes i found the solution, 
this problem is due to CPU configuration,
If you are using Visual Studio 2010 or VS 2013, just goto project 's properties and then select Compile from side bar and there will be 5 drop-down, 5th Drop-down will be Target CPU:, you should set it to x86 or x64 according to your requirements instead of Any CPU. 

My problem was solved after changing it to x86.

blocks|key|1542582|text|如果您试图在VS中使用MSI安装程序打包64位项目，您也可能会看到这个问题。(“原因是，与.msi文件一起打包的本机shim是一个32位可执行文件。”)|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1542583|有关更多细节，请参见这里：http://blogs.msdn.com/b/heaths/archive/2006/02/01/64-bit-managed-custom-actions-with-visual-studio.aspx|offset|length|1542584|entityMap|0|LINK|mutability|MUTABLE|url|http://blogs.msdn.com/b/heaths/archive/2006/02/01/64-bit-managed-custom-actions-with-visual-studio.aspx^0|0|D|2V|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|O|8|@]|9|@$D|P|E|Q|1|R]]|A|$]]|$1|F|3|-4|5|6|7|S|8|@]|9|@]|A|$]]]|G|$H|$5|I|J|K|A|$L|M]]]]

You might also see this issue if you're trying to package a 64bit project with an MSI installer in VS. ("The reason is because the native shim packaged with the .msi file is a 32-bit executable.")

See here for more details: <a href="http://blogs.msdn.com/b/heaths/archive/2006/02/01/64-bit-managed-custom-actions-with-visual-studio.aspx" rel="nofollow">http://blogs.msdn.com/b/heaths/archive/2006/02/01/64-bit-managed-custom-actions-with-visual-studio.aspx</a>

blocks|key|1542609|text|这可能有点好笑，但我的正常工作代码也有同样的问题。我添加了StreamWriter和StreamReader，这就产生了这个错误。解决方案是，我将代码放在注释括号中，然后进行调试，然后重新开始工作。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1542610|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|$]]

It can be a little funny, but I had the same problem with normal working code. I added StreamWriter and StreamReader and it gave that error.
The solution was I took that code into comment brackets then did debug and it started to work again

blocks|key|1542682|text|我刚刚收到在Visual+2015中运行的错误消息。在我的例子中，我需要运行IIS+Express的64位版本：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1542683|工具→选项→项目和解决方案→网络项目
选中“将IIS+Express的64位版本用于网站和项目”的复选框。|blockquote|1542684|截图：|1542685|​|1542686|📷|atomic|offset|length|1542687|1542688|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://developer.qcloudimg.com/http-save/yehe-900000/f06dbc3e28a21bdbab7fa1e712438f91.png|imageAlt^0|0|0|0|0|0|1|0|0|0^^$0|@$1|2|3|4|5|6|7|X|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|Y|8|@]|9|@]|A|$]]|$1|E|3|F|5|6|7|Z|8|@]|9|@]|A|$]]|$1|G|3|H|5|6|7|10|8|@]|9|@]|A|$]]|$1|I|3|J|5|K|7|11|8|@]|9|@$L|12|M|13|1|14]]|A|$]]|$1|N|3|H|5|6|7|15|8|@]|9|@]|A|$]]|$1|O|3|-4|5|6|7|16|8|@]|9|@]|A|$]]]|P|$Q|$5|R|S|T|A|$U|V|W|-4]]]]

I just had this error message running IIS Express in Visual Studio 2015. In my case I needed to be running the 64 bit version of IIS Express:

<blockquote>
 Tools → Options → Projects and Solutions → Web Projects 
 Check the box
 that says "Use the 64 bit version of IIS Express for web sites and
 projects".
</blockquote>

Screenshot:

<a href="https://i.stack.imgur.com/1EG2c.png" rel="noreferrer"><img src="https://i.stack.imgur.com/1EG2c.png" alt="Screenshot of VS options for Web Project."></a>

blocks|key|761802|text|这也可以通过在+app.config+文件中定义多个受支持的框架来实现，并迫使应用程序在与app.config文件中首先提到的不同的.NET框架中运行。|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|761803|而且，当您的系统中有上述两种框架可用时，这也会触发。|761804|作为解决办法，打开要用于在app.config中调试的目标框架。|761805|例:如果您试图在.NET+4中运行，配置文件应该有类似的内容，|761806|<supportedRuntime+version="v4.0"/>
<supportedRuntime+version="v2.0.50727"/>|code-block|syntax|javascript|761807|entityMap^0|7|C|1R|D|0|0|Q|0|0|W|0|0|V|0|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|6|7|X|8|@$9|Y|A|Z|B|C]]|D|@]|E|$]]|$1|H|3|I|5|6|7|10|8|@$9|11|A|12|B|C]]|D|@]|E|$]]|$1|J|3|K|5|6|7|13|8|@$9|14|A|15|B|C]]|D|@]|E|$]]|$1|L|3|M|5|N|7|16|8|@]|D|@]|E|$O|P]]|$1|Q|3|-4|5|6|7|17|8|@]|D|@]|E|$]]]|R|$]]

This also can happen just by having multiple supported frameworks defined in the app.config file and, forcing the app to run in a different .NET framework other than the one mentioned first in the app.config file.

And also this fires when you have both of the mentioned frameworks available in your system.

As a workaround, bring up the target framework you are going to use for the debugging up in the app.config

ex: if you trying to run in .NET 4, config file should have something similar to this,

<pre><code>&lt;supportedRuntime version="v4.0"/&gt;
&lt;supportedRuntime version="v2.0.50727"/&gt;
</code></pre>

blocks|key|761811|text|在我的C#项目中，property>Build->Platform:任意CPU，并取消选中首选的32位让编译器自动选择。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|761812|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|$]]

In my project for C#, project property->[Build]->Platform target: Any CPU,
and uncheck the Prefer 32-bit to let compiler to choose automatically.

blocks|key|1542761|text|在Visual+2015中运行单元测试(xunit)时遇到了这个问题，并遇到了以下修复：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1542762|Menu+Bar+->+Test+->+Test+Settings+->+Default+Processor+Architecture+->+X64|code-block|syntax|javascript|1542763|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 had this problem running unit tests (xunit) in Visual Studio 2015 and came across the following fix:

<pre><code>Menu Bar -&gt; Test -&gt; Test Settings -&gt; Default Processor Architecture -&gt; X64
</code></pre>

blocks|key|1063712|text|我的机器向我展示了一个BIOS更新，我想知道这是否与这个错误的突然出现有关。在我做了更新之后，错误被解决了，解决方案也很好。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1063713|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|$]]

My machine showed me a BIOS update and I wondered if that has something to do with the sudden popping-up of this error. And after I did the update, the error was resolved and the solution built fine.

blocks|key|1063734|text|这些解决方案对我都没有用--但是删除bin和obj文件夹的内容，一切又变得很酷了。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1063735|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|$]]

None of these solutions worked for me - but by deleting the contents of bin and obj folders everything was cool again.

blocks|key|1063783|text|通过Visual+(VSTS)使用Visual+Studio+Build步骤构建项目时，我得到了这一点。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1063784|解决办法是：|1063785|删除现有的源文件夹|unordered-list-item|1063786|在平台中为所有Visual构建显式设置“任意CPU”，包括依赖项(请参见下面的屏幕快照)。|1063787|重新运行构建|1063788|​|1063789|📷|atomic|1063790|1063791|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://developer.qcloudimg.com/http-save/yehe-900000/02d145426bbe2139c67cd852c5ce4ba0.png|imageAlt^0|H|J|0|0|0|0|0|0|0|1|0|0|0^^$0|@$1|2|3|4|5|6|7|13|8|@$9|14|A|15|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|16|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|17|8|@]|D|@]|E|$]]|$1|K|3|L|5|J|7|18|8|@]|D|@]|E|$]]|$1|M|3|N|5|J|7|19|8|@]|D|@]|E|$]]|$1|O|3|P|5|6|7|1A|8|@]|D|@]|E|$]]|$1|Q|3|R|5|S|7|1B|8|@]|D|@$9|1C|A|1D|1|1E]]|E|$]]|$1|T|3|P|5|6|7|1F|8|@]|D|@]|E|$]]|$1|U|3|-4|5|6|7|1G|8|@]|D|@]|E|$]]]|V|$W|$5|X|Y|Z|E|$10|11|12|-4]]]]

I got this when building a project via Visual Studio Online (VSTS) Build using <code>Visual Studio Build</code> Steps.

The solution was:

<ul>
<li>Delete the existing source folder</li>
<li>Explicitly set 'Any CPU' in the platform for all Visual Studio Builds including dependencies (see screenshot below).</li>
<li>Re-run the build</li>
</ul>

<a href="https://i.stack.imgur.com/8qqWz.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/8qqWz.png" alt="VSO Screenshot"></a>

blocks|key|1063808|text|Chilkat+.NET+4.5程序集要求在运行应用程序的任何计算机上安装VC%2B%2B+2012或2013年运行时。大多数电脑都已经安装好了。因为已经安装了Visual，所以您的开发计算机将拥有它。但是，如果部署到所需的VC%2B%2B运行时不可用的计算机，则会发生上述错误：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1063809|安装所有下面的软件包|1063810|Visual+C%2B%2B可再发行包用于Visual+2013+-+vcredist_x64|offset|length|style|BOLD|1063811|Visual+C%2B%2B可再发行包用于Visual+2013+-+vcredist_x86|1063812|Visual+C%2B%2B用于Visual+2012的可再发行包-+vcredist_x64|1063813|Visual+C%2B%2B用于Visual+2012的可再发行包-+vcredist_x86|1063814|entityMap^0|0|0|0|17|0|0|17|0|0|17|0|0|17|0^^$0|@$1|2|3|4|5|6|7|R|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|S|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|T|8|@$F|U|G|V|H|I]]|9|@]|A|$]]|$1|J|3|K|5|6|7|W|8|@$F|X|G|Y|H|I]]|9|@]|A|$]]|$1|L|3|M|5|6|7|Z|8|@$F|10|G|11|H|I]]|9|@]|A|$]]|$1|N|3|O|5|6|7|12|8|@$F|13|G|14|H|I]]|9|@]|A|$]]|$1|P|3|-4|5|6|7|15|8|@]|9|@]|A|$]]]|Q|$]]

The Chilkat .NET 4.5 assembly requires the VC++ 2012 or 2013 runtime to be installed on any computer where your application runs. Most computers will already have it installed. Your development computer will have it because Visual Studio has been installed. However, if deploying to a computer where the required VC++ runtime is not available, the above error will occur:

Install all of the bellow packages

Visual C++ Redistributable Packages for Visual Studio 2013 - vcredist_x64

Visual C++ Redistributable Packages for Visual Studio 2013 - vcredist_x86

Visual C++ Redistributable Packages for Visual Studio 2012 - vcredist_x64

Visual C++ Redistributable Packages for Visual Studio 2012 - vcredist_x86

blocks|key|1542946|text|我在VisualStudio2017上使用ReSharper运行单元测试时也遇到了这个问题，并通过以下配置修复了它：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1542947|​|1542948|📷|atomic|offset|length|1542949|1542950|还可以更改ReSharper的运行测试设置：https://resharper-support.jetbrains.com/hc/en-us/articles/207242715-How-to-run-MSTest-tests-using-x64-configuration|1542951|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://developer.qcloudimg.com/http-save/yehe-900000/a6d1fd2682b1f78b46fb2daa3bcdd088.gif|imageAlt|1|LINK|MUTABLE|url|https://resharper-support.jetbrains.com/hc/en-us/articles/207242715-How-to-run-MSTest-tests-using-x64-configuration^0|0|0|0|1|0|0|0|M|37|1|0^^$0|@$1|2|3|4|5|6|7|Z|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|10|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|11|8|@]|9|@$G|12|H|13|1|14]]|A|$]]|$1|I|3|C|5|6|7|15|8|@]|9|@]|A|$]]|$1|J|3|K|5|6|7|16|8|@]|9|@$G|17|H|18|1|19]]|A|$]]|$1|L|3|-4|5|6|7|1A|8|@]|9|@]|A|$]]]|M|$N|$5|O|P|Q|A|$R|S|T|-4]]|U|$5|V|P|W|A|$X|Y]]]]

I also had this problem running unit tests by using ReSharper on Visual Studio 2017 and fixed it with following config:

<a href="https://i.stack.imgur.com/ebsH5.gif" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/ebsH5.gif" alt="enter image description here"></a>

Also you can change the ReSharper's run test setting:
<a href="https://resharper-support.jetbrains.com/hc/en-us/articles/207242715-How-to-run-MSTest-tests-using-x64-configuration" rel="nofollow noreferrer">https://resharper-support.jetbrains.com/hc/en-us/articles/207242715-How-to-run-MSTest-tests-using-x64-configuration</a>

blocks|key|761925|text|首先，我在VS2017中使用了一个旧项目，我需要对所有项目进行微小的更改，并将其升级到框架4.7。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|761926|其他一些人提到选择Any+CPU可以解决这个问题。|offset|length|style|CODE|761927|有几个地方你需要这样做，它可能不只是简单的选择从下拉列表。这个帮我修好了：|761928|1)你需要在这里做这两件事：|761929|​|761930|📷|atomic|761931|761932|2)以及Configuration+Manager+(右键单击解决方案)|761933|761934|761935|761936|但是如果它不在那里呢？|761937|然后单击New并选择以下设置：(谢谢@RckLN)|761938|761939|761940|761941|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://developer.qcloudimg.com/http-save/yehe-900000/6b4ff0dbe0d28ac034726dc0071b5416.png|imageAlt|1|https://developer.qcloudimg.com/http-save/yehe-900000/3706e6997bed8bcfb95be091df521b4e.png|2|LINK|MUTABLE|url|https://stackoverflow.com/a/18019303/16940|3|https://developer.qcloudimg.com/http-save/yehe-900000/fd847203a955fefe55cc90a9358e71bc.png^0|0|9|7|0|0|0|0|0|1|0|0|0|4|L|0|0|0|1|1|0|0|0|4|3|G|8|2|0|0|0|1|3|0|0^^$0|@$1|2|3|4|5|6|7|1L|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|1M|8|@$D|1N|E|1O|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|1P|8|@]|9|@]|A|$]]|$1|J|3|K|5|6|7|1Q|8|@]|9|@]|A|$]]|$1|L|3|M|5|6|7|1R|8|@]|9|@]|A|$]]|$1|N|3|O|5|P|7|1S|8|@]|9|@$D|1T|E|1U|1|1V]]|A|$]]|$1|Q|3|M|5|6|7|1W|8|@]|9|@]|A|$]]|$1|R|3|S|5|6|7|1X|8|@$D|1Y|E|1Z|F|G]]|9|@]|A|$]]|$1|T|3|M|5|6|7|20|8|@]|9|@]|A|$]]|$1|U|3|O|5|P|7|21|8|@]|9|@$D|22|E|23|1|24]]|A|$]]|$1|V|3|M|5|6|7|25|8|@]|9|@]|A|$]]|$1|W|3|X|5|6|7|26|8|@]|9|@]|A|$]]|$1|Y|3|Z|5|6|7|27|8|@$D|28|E|29|F|G]]|9|@$D|2A|E|2B|1|2C]]|A|$]]|$1|10|3|M|5|6|7|2D|8|@]|9|@]|A|$]]|$1|11|3|O|5|P|7|2E|8|@]|9|@$D|2F|E|2G|1|2H]]|A|$]]|$1|12|3|M|5|6|7|2I|8|@]|9|@]|A|$]]|$1|13|3|-4|5|6|7|2J|8|@]|9|@]|A|$]]]|14|$15|$5|16|17|18|A|$19|1A|1B|-4]]|1C|$5|16|17|18|A|$19|1D|1B|-4]]|1E|$5|1F|17|1G|A|$1H|1I]]|1J|$5|16|17|18|A|$19|1K|1B|-4]]]]

First of all I got this in VS2017 with an old project I needed to make a tiny change to and upraded all the projects to framework 4.7.

<hr>

Several others have mentioned selecting <code>Any CPU</code> can fix this issue.

There's a couple places you need to do it, and it might not just be as simple as selecting from the dropdown. This fixed it for me:

1) You need to do it both here:

<a href="https://i.stack.imgur.com/M0uoe.png" rel="noreferrer"><img src="https://i.stack.imgur.com/M0uoe.png" alt="enter image description here"></a>

2) And also in <code>Configuration Manager</code> (right click on solution)

<a href="https://i.stack.imgur.com/ytrVE.png" rel="noreferrer"><img src="https://i.stack.imgur.com/ytrVE.png" alt="enter image description here"></a>

But what if it isn't there???

Then click <code>New</code> and choose these settings: (<a href="https://stackoverflow.com/a/18019303/16940">thanks @RckLN</a>)

<a href="https://i.stack.imgur.com/yetiy.png" rel="noreferrer"><img src="https://i.stack.imgur.com/yetiy.png" alt="enter image description here"></a>

blocks|key|764303|text|您是否试图从cmd运行.exe文件？这是我的错。只需双击.exe文件即可。如果它是Windows8.1/+Windows+2012的.NET核心SCDforWindows8.1+R2+x64。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|764304|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|$]]

Are you trying to run your .exe file from the cmd? This was my mistake. Just run the .exe file by double clicking it. If it's a .NET Core SCD for Windows 8.1/Windows Server 2012 R2 x64.

blocks|key|1543148|text|如果您像我一样通过cli+.net+integration从您的程序中使用LibreOffice，我也会遇到同样的错误。我在我的PC上的生产环境中使用了旧版本的LibreOffice，我安装了一个冲突的更新版本。刚刚卸载LibreOffice.我在这里找到了解决方案cppuhelper‘|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|1543149|entityMap|0|LINK|mutability|MUTABLE|url|https://bugs.documentfoundation.org/show_bug.cgi?id=75206^0|0|T|2Y|G|3P|B|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@$9|O|A|P|B|C]|$9|Q|A|R|B|C]]|D|@$9|S|A|T|1|U]]|E|$]]|$1|F|3|-4|5|6|7|V|8|@]|D|@]|E|$]]]|G|$H|$5|I|J|K|E|$L|M]]]]

If you use LibreOffice from your program via cli .net integration like me, I got the same error. I use the older version of LibreOffice on the production environment on my PC I installed a newer version that was in conflict. Just uninstall LibreOffice. I found the solution here <a href="https://bugs.documentfoundation.org/show_bug.cgi?id=75206" rel="nofollow noreferrer">.NET CLI: Could not load file or assembly 'cli_cppuhelper'</a>

blocks|key|1543156|text|在我的示例中，抛出此异常的dll中缺少依赖项。我检查了Dependency，添加了缺少的dll，问题就解决了。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1543157|更具体地说，我无意中向opencv_core340.dll添加了SVN关键字，从而破坏了我的dll，因此我的dll无法再使用它。但是，我不认为这个问题的解决方案取决于dll是否损坏或丢失。我加入这个只是为了提供完整的信息。|1543158|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|$]]

In my case a dependency was missing in the dll that threw this exception. I checked with Dependency Walker, added the missing dll and the problem was resolved.

More specifically, I somehow corrupted my opencv_core340.dll by accidentally adding SVN keywords to it, and thus my dll could no longer use it. However I don't believe that the solution to this problem depends on whether the dll is corrupted or missing. I'm just adding this for the sake of giving complete information.

blocks|key|1543160|text|开枪！我知道这个问题。我以为我做的一切都是正确的，直到我意外地在VS输出窗口中看到了'x86‘，这时我才找到了原因。今天在上面浪费了几分钟。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1543161|“发布”窗口下的配置设置为'x86'；而在其他地方，则设置为'x64‘。|1543162|请确保它在配置管理器、发布设置、解决方案配置和IIS设置之间保持同步(如果这是您的web服务器的话)。|1543163|另外，请记住-+VS是一个32位的应用程序，IIS是64位的.在IIS中，默认情况下禁用32位应用程序。|1543164|​|1543165|📷|atomic|offset|length|1543166|1543167|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://developer.qcloudimg.com/http-save/yehe-900000/e12c4b69ada9eedd6211c17156b4e5ac.png|imageAlt^0|0|0|0|0|0|0|1|0|0|0^^$0|@$1|2|3|4|5|6|7|Y|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Z|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|10|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|11|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|12|8|@]|9|@]|A|$]]|$1|J|3|K|5|L|7|13|8|@]|9|@$M|14|N|15|1|16]]|A|$]]|$1|O|3|I|5|6|7|17|8|@]|9|@]|A|$]]|$1|P|3|-4|5|6|7|18|8|@]|9|@]|A|$]]]|Q|$R|$5|S|T|U|A|$V|W|X|-4]]]]

Shoot! I knew about this problem. I thought I was doing everything right until I accidentally saw 'x86' in the VS output window and that's when I got hold of the cause. Wasted a few mins on it today.

The configuration under 'Publish' window was set to 'x86'; whereas, everywhere else, it was 'x64'.

Please make sure it's in-sync across configuration manager, publish settings, solution configurations, and IIS settings (if that's your web server). 

Also, please keep in mind - VS is a 32-bit app and IIS is 64 bit. 32-bit apps are disabled by default in IIS.

<a href="https://i.stack.imgur.com/0vXGy.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/0vXGy.png" alt="enter image description here"></a>

blocks|key|762005|text|下面为我解决了这个问题，取消选中“偏好32位”：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|762006|📷|atomic|offset|length|762007|​|762008|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://developer.qcloudimg.com/http-save/yehe-900000/ba172228ab1bd2f594b0128d67f94984.png|imageAlt^0|0|0|1|0|0|0^^$0|@$1|2|3|4|5|6|7|R|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|S|8|@]|9|@$E|T|F|U|1|V]]|A|$]]|$1|G|3|H|5|6|7|W|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|X|8|@]|9|@]|A|$]]]|J|$K|$5|L|M|N|A|$O|P|Q|-4]]]]

The following solved the issue for me, uncheck 'Prefer 
32-bit' :
<a href="https://i.stack.imgur.com/oD44Q.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/oD44Q.png" alt="enter image description here"></a>

blocks|key|1543250|text|我发现了一些与其他答案不同的东西。在我的项目中达到这个异常是一个错误编译的结果。在不做任何更改的情况下，只要强制重建，它就被修复了。|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|1543251|entityMap^0|1I|4|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 have detected something different from the other answers. Reaching this exception in my project was the result of a corrupt compilation. Without making any changes, just forcing rebuild, it was fixed.

blocks|key|1064097|text|我也有过同样的问题。在我的例子中，项目B是一个.Net核心类库，它安装了Nuget+"Microsoft.Management.Infrastructure“。错误是我称我的项目B为"MI“。我把项目的名字改成了别的东西，突然一切都恢复了。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1064098|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. Project B in my case was a .Net Core Class Library which has a Nuget "Microsoft.Management.Infrastructure" installed. The error was that i called my project B "MI". I changed the project name to something else and suddenly everything worked again.

blocks|key|762033|text|在我的示例中，错误是System.BadImageFormatException:无法加载文件或程序集“vjslib、Version=2.0.0.0、Culture=neutral、PublicKeyToken=b03f5f7f11d50a3a”或其依赖项之一。|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|762034|通过从这里安装vjredist+64解决了这个问题。|762035|entityMap|0|LINK|mutability|MUTABLE|url|https://www.microsoft.com/en-us/download/details.aspx?id=15468^0|A|3D|0|3|2|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@$9|Q|A|R|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|S|8|@]|D|@$9|T|A|U|1|V]]|E|$]]|$1|H|3|-4|5|6|7|W|8|@]|D|@]|E|$]]]|I|$J|$5|K|L|M|E|$N|O]]]]

In my case the error was System.BadImageFormatException: Could not load file or assembly 'vjslib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies.
It was solved by installing vjredist 64 from <a href="https://www.microsoft.com/en-us/download/details.aspx?id=15468" rel="nofollow noreferrer">here</a>.

blocks|key|1543338|text|对于较新版本的visual+studio+(此答案为v16.10)，可以通过手动更改解决方案平台来修复。对我来说，它在从“任意CPU”转换为"x86“之后起了作用。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1543339|单击解决方案平台下拉列表，其中任何CPU都出现在下面的图像中。|ordered-list-item|1543340|📷|atomic|offset|length|1543341|转到配置管理器。|1543342|1543343|单击new并根据对您有用的内容添加平台x86或x64+(32位或64位)。|1543344|1543345|重新启动项目。|1543346|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://developer.qcloudimg.com/http-save/yehe-900000/7419061f8cc72a9644bdf3b853477e6e.png|imageAlt|1|https://developer.qcloudimg.com/http-save/yehe-900000/04ddc7732c6e23a4de165047031894df.png|2|https://developer.qcloudimg.com/http-save/yehe-900000/dec2e4586e04806133799b48363e92f1.png^0|0|0|0|1|0|0|0|0|1|1|0|0|0|1|2|0|0^^$0|@$1|2|3|4|5|6|7|14|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|15|8|@]|9|@]|A|$]]|$1|E|3|F|5|G|7|16|8|@]|9|@$H|17|I|18|1|19]]|A|$]]|$1|J|3|K|5|D|7|1A|8|@]|9|@]|A|$]]|$1|L|3|F|5|G|7|1B|8|@]|9|@$H|1C|I|1D|1|1E]]|A|$]]|$1|M|3|N|5|D|7|1F|8|@]|9|@]|A|$]]|$1|O|3|F|5|G|7|1G|8|@]|9|@$H|1H|I|1I|1|1J]]|A|$]]|$1|P|3|Q|5|D|7|1K|8|@]|9|@]|A|$]]|$1|R|3|-4|5|6|7|1L|8|@]|9|@]|A|$]]]|S|$T|$5|U|V|W|A|$X|Y|Z|-4]]|10|$5|U|V|W|A|$X|11|Z|-4]]|12|$5|U|V|W|A|$X|13|Z|-4]]]]

For the newer version of visual studio (v16.10 for this answer), it can be fixed by manually changing the solution platform. For me it worked after changing from &quot;Any CPU&quot; to &quot;x86&quot;.
<ol>
<li>Click on solutions platform dropdown, the one in which any CPU is appearing in image below.
<a href="https://i.stack.imgur.com/3b5vX.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/3b5vX.png" alt="enter image description here" /></a>
</li>
<li>Go to configuration manager.
<a href="https://i.stack.imgur.com/TrI4u.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/TrI4u.png" alt="enter image description here" /></a>
</li>
<li>Click on new and add platform x86 or x64 (32 or 64 bits) based on what is working for you.
<a href="https://i.stack.imgur.com/hGPf3.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/hGPf3.png" alt="enter image description here" /></a>
</li>
<li>Restart the project.
</li>
</ol>

blocks|key|1064222|text|我也有这个问题。正如前面提到的，这个问题与32位/64位的冲突有关，但与位于Azure的站点有关。若要更改Azure应用程序服务中的平台，请转到Configuration+->常规设置。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1064223|📷|atomic|offset|length|1064224|​|1064225|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://developer.qcloudimg.com/http-save/yehe-900000/e21adcbddbf7c8948df4feff6f9a80d0.png|imageAlt^0|0|0|1|0|0|0^^$0|@$1|2|3|4|5|6|7|R|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|S|8|@]|9|@$E|T|F|U|1|V]]|A|$]]|$1|G|3|H|5|6|7|W|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|X|8|@]|9|@]|A|$]]]|J|$K|$5|L|M|N|A|$O|P|Q|-4]]]]

I also had this problem. As mention before the problem was related to a 32-bit / 64-bit conflict, but with the site hosted in Azure. To change the plattform in Azure App Service, go to Configuration -&gt; General settings.
<a href="https://i.stack.imgur.com/jBG0u.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/jBG0u.png" alt="enter image description here" /></a>

blocks|key|762078|text|有趣的是，如果文件夹路径很长，这也会发生，这可能会导致构建问题，奇怪的是，这种神秘的错误消息已经足够了。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|762079|只需将文件夹移到路径上，就可以解决问题！|762080|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|$]]

Interesting as it goes, this can also happen if the folder path is long, which can cause build issues, oddly enough with this cryptic error message.
Just moving the folder up the path, solved the problem!

I have two projects, <code>ProjectA</code> and <code>ProjectB</code>. <code>ProjectB</code> is a console application, which depends on <code>ProjectA</code>. Yesterday, everything was working fine, but suddenly today when I run <code>ProjectB</code> I get this:

<blockquote>
 BadImageFormatException was unhandled: 
 Could not load file or assembly 'ProjectA, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null' or one of its dependencies. An attempt was made to load a program with an incorrect format.
</blockquote>

Both are just regular projects, with no dependencies on any other non-.Net projects. Both are fully .Net - there is no native code, and no P/Invoke. I have other projects which depend on <code>ProjectA</code> and still work just fine.

Things I have tried:

<ul>
<li>Make sure both projects are set to "Any CPU," with the build checkbox checked. They are.</li>
<li>Make sure both projects are for the same Target Framework (.Net 4.0 Client Profile).</li>
<li>Under ProjectB --> References --> ProjectA --> Properties, make sure "Copy Local" is set to "True" _ (I verified that ProjectA.dll is being copied correctly)</li>
<li>Clean/Rebuild the solution. I even tried manually deleting the /bin and /obj folders in both projects.</li>
<li>Restart Visual Studio. Restart my computer.</li>
<li>Check out an entirely new copy of the repository.</li>
</ul>

But I still get the same error. I have no idea what I did to cause this, nor how to fix it. Any ideas?

Could not load file or assembly ... An attempt was made to load a program with an incorrect format (System.BadImageFormatException)

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我有两个项目，ProjectA和ProjectB。ProjectB是一个依赖于ProjectA的控制台应用程序。昨天，一切都很好，但突然间，当我运行ProjectB时，我得到了以下信息：BadImageFormatException是未处理的：无法加载文件或程序集“ProjectA、Version=1.0.0.0、Cu...

问无法加载文件或程序集.尝试加载格式不正确的程序(System.BadImageFormatException)。
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问无法加载文件或程序集.尝试加载格式不正确的程序(System.BadImageFormatException)。EN