blocks|key|1553355|text|你使用.config文件吗？如果是，请检查它是否有错误。这种类型的初始化错误通常是由无效的XML触发的:如果XAML中没有错误，那么首先要检查XML配置。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1553356|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|$]]

Do you use .config file? If so, check it for errors. Initialization errors of such sort are often triggered by invalid XML: if there are no errors in XAML, XML config is the first place to look.

blocks|key|1768401|text|谢谢@ima，你的回答给我指明了正确的方向。我使用的是一个app.config文件，其中包含以下内容：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1768402|<configuration>
++<startup>
++++<supportedRuntime+version="v2.0.50727"+sku="Client"/>
++</startup>
++<configSections>
++++<section+name="modules"+type="Microsoft.Practices.Composite.Modularity.ModulesConfigurationSection,+Microsoft.Practices.Composite"/>
++</configSections>
++<modules>
++++<module+assemblyFile="Modules/MyNamespace.Modules.ModuleName.dll"+moduleType="MyNamespace.Modules.ModuleName.ModuleClass"+moduleName="Name"/>
++</modules>
</configuration>|code-block|syntax|javascript|1768403|似乎问题出在元素上，因为当我删除它时，应用程序运行得很好。我很困惑，因为Visual+Studio2008在我勾选了3.5+SP1中可用的“客户端配置文件”时添加了这一点。|1768404|在选中和取消选中该框之后，我得到了一个如下所示的配置文件：|1768405|<configuration>
++<configSections>
++++<section+name="modules"+type="Microsoft.Practices.Composite.Modularity.ModulesConfigurationSection,+Microsoft.Practices.Composite"/>
++</configSections>
++<modules>
++++<module+assemblyFile="Modules/MyNamespace.Modules.ModuleName.dll"+moduleType="MyNamespace.Modules.ModuleName.ModuleClass"+moduleName="Name"/>
++</modules>
++<startup>
++++<supportedRuntime+version="v2.0.50727"+sku="Client"/>
++</startup>
</configuration>|1768406|这是可行的！|1768407|我不确定为什么app.config中元素的顺序很重要--但看起来很重要。|1768408|entityMap^0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|U|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|V|8|@]|9|@]|A|$]]|$1|K|3|L|5|D|7|W|8|@]|9|@]|A|$E|F]]|$1|M|3|N|5|6|7|X|8|@]|9|@]|A|$]]|$1|O|3|P|5|6|7|Y|8|@]|9|@]|A|$]]|$1|Q|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|R|$]]

Thanks @ima, your answer pointed me in the right direction. I was using an app.config file and it contained this:

<pre><code>&lt;configuration&gt;
 &lt;startup&gt;
 &lt;supportedRuntime version="v2.0.50727" sku="Client"/&gt;
 &lt;/startup&gt;
 &lt;configSections&gt;
 &lt;section name="modules" type="Microsoft.Practices.Composite.Modularity.ModulesConfigurationSection, Microsoft.Practices.Composite"/&gt;
 &lt;/configSections&gt;
 &lt;modules&gt;
 &lt;module assemblyFile="Modules/MyNamespace.Modules.ModuleName.dll" moduleType="MyNamespace.Modules.ModuleName.ModuleClass" moduleName="Name"/&gt;
 &lt;/modules&gt;
&lt;/configuration&gt;
</code></pre>

It seems the problem was the &lt;startup&gt; element because when I removed it the application ran fine. I was confused because Visual Studio 2008 added that when I checked the box to utilise the "Client Profile" available in 3.5 SP1.

After some mucking about checking and un-checking the box I ended up with a configuration file like this:

<pre><code>&lt;configuration&gt;
 &lt;configSections&gt;
 &lt;section name="modules" type="Microsoft.Practices.Composite.Modularity.ModulesConfigurationSection, Microsoft.Practices.Composite"/&gt;
 &lt;/configSections&gt;
 &lt;modules&gt;
 &lt;module assemblyFile="Modules/MyNamespace.Modules.ModuleName.dll" moduleType="MyNamespace.Modules.ModuleName.ModuleClass" moduleName="Name"/&gt;
 &lt;/modules&gt;
 &lt;startup&gt;
 &lt;supportedRuntime version="v2.0.50727" sku="Client"/&gt;
 &lt;/startup&gt;
&lt;/configuration&gt;
</code></pre>

Which works!

I'm not sure why the order of elements in the app.config is important - but it seems it is.

blocks|key|1768442|text|您有两个名为“模块”的部分。将两个模块定义放在一个名为"modules“的部分中。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1768443|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|$]]

You have two sections named "modules". Place both module definitions in one section named "modules".

blocks|key|1768498|text|我也遇到过类似的情况。在寻找了一周的时间后，我找到了解决方案，它对我来说真的很有效。它解决了由于同一问题而产生的2-3个问题。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1768499|按照以下步骤操作:检查注册表中的WPF键(不存在)：HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET+Framework+Setup\NDP\v3.0\Setup\Windows+Presentation+Foundation我的问题是由于注册表中缺少上述键所致。|1768500|您可以在您的注册表中修改和使用以下详细信息：(实际上，您可以保存在文件中并在注册表中导入)|1768501|HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET框架安装\NDP\v3.0\Setup\Windows+Presentation+Foundation+@=“”WPF+v3.0.6920.1453“”版本“"Version"="3.0.6920.1453”"WPFReferenceAssembliesPathx86"="C:\Program+Files\Reference+Assemblies\Microsoft\+Framework+\v3.0\“"WPFCommonAssembliesPathx86"="C:\Windows\System32\”"InstallRoot"="C:\Windows\Microsoft.NET\Framework\v3.0\WPF\“"InstallSuccess"=dword:00000001"ProductVersion"="3.0.6920.1453“"WPFNonReferenceAssembliesPathx86"="C:\Windows\Microsoft.NET\Framework\v3.0\WPF\”|1768502|我相信它会起作用的。|1768503|万事如意。|1768504|致以敬意，|1768505|Umesh|1768506|entityMap^0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|R|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|S|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|T|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|U|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|V|8|@]|9|@]|A|$]]|$1|J|3|K|5|6|7|W|8|@]|9|@]|A|$]]|$1|L|3|M|5|6|7|X|8|@]|9|@]|A|$]]|$1|N|3|O|5|6|7|Y|8|@]|9|@]|A|$]]|$1|P|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|Q|$]]

I ran into a similar situation.
After searching for a week time, I found the resolution and it really worked for me.
It solved 2-3 problems arising due to same problem.

Follow these steps:
Check the WPF key (absence) in registry:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v3.0\Setup\Windows Presentation Foundation
My problem was due to the absence of above mentioned key in registry.

You can modify and use following details in your registry: (Actually, you can save in file and import in registry)

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v3.0\Setup\Windows Presentation Foundation]
@="WPF v3.0.6920.1453"
"Version"="3.0.6920.1453"
"WPFReferenceAssembliesPathx86"="C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.0\"
"WPFCommonAssembliesPathx86"="C:\Windows\System32\"
"InstallRoot"="C:\Windows\Microsoft.NET\Framework\v3.0\WPF\"
"InstallSuccess"=dword:00000001
"ProductVersion"="3.0.6920.1453"
"WPFNonReferenceAssembliesPathx86"="C:\Windows\Microsoft.NET\Framework\v3.0\WPF\"

I am sure it will work.

all the best.

Regards,

Umesh

blocks|key|1553537|text|深入跟踪InnerExceptions，您可能会发现以下错误：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1553538|"Only+one+<configSections>+element+allowed+per+config+file+and+if+present+must+be+the+first+child+of+the+root+<configuration>+element"|offset|length|style|CODE|1553539|此顺序更改发生在Visual+Studio+EntityFramework向导将connectionStrings元素添加到顶部之后|1553540|entityMap^0|0|0|3Q|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|$]]

Tracking the InnerExceptions deep down , you might find the following error:

<code>"Only one &lt;configSections&gt; element allowed per config file and if present must be the first child of the root &lt;configuration&gt; element"</code>

This order change happened after Visual Studio EntityFramework Wizard added the connectionStrings element to the top

blocks|key|1768716|text|如果您只看到没有原因或没有详细说明错误的TypeInitializationException，那么请在Visual+Studio选项中禁用“仅我的代码”。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1768717|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 you only see the TypeInitializationException with no reason or no details on what's wrong, then disable Just My Code in the Visual Studio options.

blocks|key|1553722|text|在我的示例中，需要添加以下内容：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1553723|<configSections>

<section+name="entityFramework"+type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection,+EntityFramework,+Version=6.0.0.0,+Culture=neutral,+PublicKeyToken=b77a5c561934e089"+requirePermission="false"+/>|code-block|syntax|javascript|1553724|​|1553725|App.config部分(VS+2015+.NET+4.5.2)|1553726|打开之前构建的任何WPF项目，检查构建，如果确定-检查并比较两个项目中的App.config|1553727|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|R|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

In my case this is need to be added:

<pre><code>&lt;configSections&gt;
&lt;!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 --&gt;
&lt;section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" /&gt;
</code></pre>



Section at App.config (VS 2015 .NET 4.5.2)

Open any WPF project what builded before, check build, if OK - check and compare App.config's at both projects

blocks|key|1553807|text|对我来说，我已经将应用程序设置从另一个应用程序复制到我的app.config中一个名为"userSettings“的新部分。但是，还需要将"configSections“添加到定义"userSettings”的app.config中。我删除了userSettings部分，然后编辑了应用程序设置并保存了它。VS会自动为您创建正确的"userSettings“和"configSections”，如果它们不存在。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1553808|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, I had copied app settings over from another application into my app.config into a new section called "userSettings". However, there needs to be a "configSections" also added to the app.config which defines "userSettings". I deleted the userSettings section then edited the app settings and saved it. VS automatically creates the correct "userSettings" and "configSections" for you if they are absent.

blocks|key|1768888|text|对于我来说，我重命名了我的应用程序名称，并导致了这个错误。我有一个服务器和客户端应用程序。服务器应用程序没有此问题。所以我检查了服务器和客户端的App.config文件。我发现|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1768889|<startup>
<supportedRuntime+version="v4.0"+sku=".NETFramework,Version=v4.6.1"+/>
</startup>

<configSections>
<section+name="entityFramework"+type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection,+EntityFramework,+Version=6.0.0.0,+Culture=neutral,+PublicKeyToken=b77a5c561934e089"+requirePermission="false"+/>

</configSections>|code-block|syntax|javascript|1768890|在客户端和服务器端的标签上面有另一种方式，所以我将粘贴的启动标签复制到configSections标签下，它起作用了。就像这样。|1768891|<configSections>
<section+name="entityFramework"+type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection,+EntityFramework,+Version=6.0.0.0,+Culture=neutral,+PublicKeyToken=b77a5c561934e089"+requirePermission="false"+/>

</configSections>

<startup>
<supportedRuntime+version="v4.0"+sku=".NETFramework,Version=v4.6.1"+/>
</startup>|1768892|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

For me I renamed my Application name and caused this error. I had a server and client app. the server app was not having this issue. so i checked App.config file of both server and client. I found
<pre><code>&lt;startup&gt;
&lt;supportedRuntime version=&quot;v4.0&quot; sku=&quot;.NETFramework,Version=v4.6.1&quot; /&gt;
&lt;/startup&gt;

&lt;configSections&gt;
&lt;section name=&quot;entityFramework&quot; type=&quot;System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089&quot; requirePermission=&quot;false&quot; /&gt;
&lt;!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 --&gt;
&lt;/configSections&gt;
</code></pre>
&lt;startup&gt; tag above &lt;configSections&gt; tag in client and server had the other way so I copy pasted startup tag down configSections tag and it worked. Like this.
<pre><code>&lt;configSections&gt;
&lt;section name=&quot;entityFramework&quot; type=&quot;System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089&quot; requirePermission=&quot;false&quot; /&gt;
&lt;!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 --&gt;
&lt;/configSections&gt;

&lt;startup&gt;
&lt;supportedRuntime version=&quot;v4.0&quot; sku=&quot;.NETFramework,Version=v4.6.1&quot; /&gt;
&lt;/startup&gt;
</code></pre>

blocks|key|1768950|text|我也收到了同样的错误。上面提到的建议对我不起作用。在运行以下命令后，我得到了以下错误|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1768951|System.TypeInitializationException
++HResult=0x80131534
++Message=The+type+initializer+for+'System.Windows.Application'+threw+an+exception.
++Source=PresentationFramework
++StackTrace:
+++at+System.Windows.Application..ctor()
+++at+ShortBarDetectionSystem.App..ctor()
+++at+ShortBarDetectionSystem.App.Main()

Inner+Exception+1:
TypeInitializationException:+The+type+initializer+for+'System.Windows.Navigation.BaseUriHelper'+threw+an+exception.

Inner+Exception+2:
TypeInitializationException:+The+type+initializer+for+'MS.Internal.TraceDependencyProperty'+threw+an+exception.

Inner+Exception+3:
ConfigurationErrorsException:+Configuration+system+failed+to+initialize

Inner+Exception+4:
ConfigurationErrorsException:+Section+or+group+name+'oracle.manageddataaccess.client'+is+already+defined.+Updates+to+this+may+only+occur+at+the+configuration+level+where+it+is+defined.+(C:\ShortBarDetectionSystem\code\framework\TypeInitializationException\ver0_1\ShortBarDetectionSystem\ShortBarDetectionSystem\bin\x64\Debug\GrateBarDefectDetectionSystem.exe.Config+line+4)|code-block|syntax|javascript|1768952|我在exe.config文件的第4行收到一个错误。.exe.config文件是：|1768953|<?xml+version="1.0"+encoding="utf-8"?>
<configuration>
++<configSections>
++++<section+name="oracle.manageddataaccess.client"+type="OracleInternal.Common.ODPMSectionHandler,+Oracle.ManagedDataAccess,+Version=4.122.21.1,+Culture=neutral,+PublicKeyToken=89b483f429c47342"+/>
++</configSections>
++<startup>
++++<supportedRuntime+version="v4.0"+sku=".NETFramework,Version=v4.7.2"+/>
++</startup>
++<system.data>
++++<DbProviderFactories>
++++++<remove+invariant="Oracle.ManagedDataAccess.Client"+/>
++++++<add+name="ODP.NET,+Managed+Driver"+invariant="Oracle.ManagedDataAccess.Client"+description="Oracle+Data+Provider+for+.NET,+Managed+Driver"+type="Oracle.ManagedDataAccess.Client.OracleClientFactory,+Oracle.ManagedDataAccess,+Version=4.122.21.1,+Culture=neutral,+PublicKeyToken=89b483f429c47342"+/>
++++</DbProviderFactories>
++</system.data>
++<runtime>
++++<assemblyBinding+xmlns="urn:schemas-microsoft-com:asm.v1">
++++++<dependentAssembly>
++++++++<assemblyIdentity+name="System.Runtime.CompilerServices.Unsafe"+publicKeyToken="b03f5f7f11d50a3a"+culture="neutral"+/>
++++++++<bindingRedirect+oldVersion="0.0.0.0-6.0.0.0"+newVersion="6.0.0.0"+/>
++++++</dependentAssembly>
++++++<dependentAssembly>
++++++++<assemblyIdentity+name="System.Text.Json"+publicKeyToken="cc7b13ffcd2ddd51"+culture="neutral"+/>
++++++++<bindingRedirect+oldVersion="0.0.0.0-6.0.0.0"+newVersion="6.0.0.0"+/>
++++++</dependentAssembly>
++++</assemblyBinding>
++</runtime>
</configuration>|1768954|然而，经过反复试验，我发现删除configSections|1768955|<configSections>
++++<section+name="oracle.manageddataaccess.client"+type="OracleInternal.Common.ODPMSectionHandler,+Oracle.ManagedDataAccess,+Version=4.122.21.1,+Culture=neutral,+PublicKeyToken=89b483f429c47342"+/>
++</configSections>|1768956|对我很管用。|1768957|entityMap^0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|U|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|V|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|W|8|@]|9|@]|A|$]]|$1|M|3|N|5|D|7|X|8|@]|9|@]|A|$E|F]]|$1|O|3|P|5|6|7|Y|8|@]|9|@]|A|$]]|$1|Q|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|R|$]]

I was getting the same error. The suggestions mentioned above did not work for me. i was getting the following error after running
<pre><code>System.TypeInitializationException
 HResult=0x80131534
 Message=The type initializer for 'System.Windows.Application' threw an exception.
 Source=PresentationFramework
 StackTrace:
 at System.Windows.Application..ctor()
 at ShortBarDetectionSystem.App..ctor()
 at ShortBarDetectionSystem.App.Main()

Inner Exception 1:
TypeInitializationException: The type initializer for 'System.Windows.Navigation.BaseUriHelper' threw an exception.

Inner Exception 2:
TypeInitializationException: The type initializer for 'MS.Internal.TraceDependencyProperty' threw an exception.

Inner Exception 3:
ConfigurationErrorsException: Configuration system failed to initialize

Inner Exception 4:
ConfigurationErrorsException: Section or group name 'oracle.manageddataaccess.client' is already defined. Updates to this may only occur at the configuration level where it is defined. (C:\ShortBarDetectionSystem\code\framework\TypeInitializationException\ver0_1\ShortBarDetectionSystem\ShortBarDetectionSystem\bin\x64\Debug\GrateBarDefectDetectionSystem.exe.Config line 4)
</code></pre>
I was getting an error in my exe.config file line 4. The .exe.config file was :
<pre><code>&lt;?xml version=&quot;1.0&quot; encoding=&quot;utf-8&quot;?&gt;
&lt;configuration&gt;
 &lt;configSections&gt;
 &lt;section name=&quot;oracle.manageddataaccess.client&quot; type=&quot;OracleInternal.Common.ODPMSectionHandler, Oracle.ManagedDataAccess, Version=4.122.21.1, Culture=neutral, PublicKeyToken=89b483f429c47342&quot; /&gt;
 &lt;/configSections&gt;
 &lt;startup&gt;
 &lt;supportedRuntime version=&quot;v4.0&quot; sku=&quot;.NETFramework,Version=v4.7.2&quot; /&gt;
 &lt;/startup&gt;
 &lt;system.data&gt;
 &lt;DbProviderFactories&gt;
 &lt;remove invariant=&quot;Oracle.ManagedDataAccess.Client&quot; /&gt;
 &lt;add name=&quot;ODP.NET, Managed Driver&quot; invariant=&quot;Oracle.ManagedDataAccess.Client&quot; description=&quot;Oracle Data Provider for .NET, Managed Driver&quot; type=&quot;Oracle.ManagedDataAccess.Client.OracleClientFactory, Oracle.ManagedDataAccess, Version=4.122.21.1, Culture=neutral, PublicKeyToken=89b483f429c47342&quot; /&gt;
 &lt;/DbProviderFactories&gt;
 &lt;/system.data&gt;
 &lt;runtime&gt;
 &lt;assemblyBinding xmlns=&quot;urn:schemas-microsoft-com:asm.v1&quot;&gt;
 &lt;dependentAssembly&gt;
 &lt;assemblyIdentity name=&quot;System.Runtime.CompilerServices.Unsafe&quot; publicKeyToken=&quot;b03f5f7f11d50a3a&quot; culture=&quot;neutral&quot; /&gt;
 &lt;bindingRedirect oldVersion=&quot;0.0.0.0-6.0.0.0&quot; newVersion=&quot;6.0.0.0&quot; /&gt;
 &lt;/dependentAssembly&gt;
 &lt;dependentAssembly&gt;
 &lt;assemblyIdentity name=&quot;System.Text.Json&quot; publicKeyToken=&quot;cc7b13ffcd2ddd51&quot; culture=&quot;neutral&quot; /&gt;
 &lt;bindingRedirect oldVersion=&quot;0.0.0.0-6.0.0.0&quot; newVersion=&quot;6.0.0.0&quot; /&gt;
 &lt;/dependentAssembly&gt;
 &lt;/assemblyBinding&gt;
 &lt;/runtime&gt;
&lt;/configuration&gt;
</code></pre>
However after trial and error i figured out that deleting the configSections
<pre><code>&lt;configSections&gt;
 &lt;section name=&quot;oracle.manageddataaccess.client&quot; type=&quot;OracleInternal.Common.ODPMSectionHandler, Oracle.ManagedDataAccess, Version=4.122.21.1, Culture=neutral, PublicKeyToken=89b483f429c47342&quot; /&gt;
 &lt;/configSections&gt;
</code></pre>
worked for me.

I have a simple WPF application which I am trying to start. I am following the Microsoft Patterns and Practices "Composite Application Guidance for WPF". I've followed their instructions however my WPF application fails immediately with a "TypeInitializationException".

The InnerException property reveals that "The type initializer for 'System.Windows.Navigation.BaseUriHelper' threw an exception."

Here is my app.xaml:

<pre><code>&lt;Application x:Class="MyNamespace.App"
 xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
 xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"&gt;
 &lt;Application.Resources&gt; 
 &lt;/Application.Resources&gt;
&lt;/Application&gt;
</code></pre>

And here is my app.xaml.cs (exception thrown at "public App()"):

<pre><code>public partial class App : Application
{
 public App()
 {
 Bootstrapper bootStrapper = new Bootstrapper();
 bootStrapper.Run();
 }
}
</code></pre>

I have set the "App" class as the startup object in the project.

What is going astray?

WPF Application fails on startup with TypeInitializationException

Visual Studio

服务器

Windows

我有一个简单的WPF应用程序，我正在尝试启动。我正在遵循Microsoft Pattern and Practices“WPF复合应用程序指南”。我遵循了他们的指示，但是我的WPF应用程序立即失败，并显示了一个"TypeInitializationException“。InnerException属性显示“'Syste...

问WPF应用程序在使用TypeInitializationException启动时失败
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