ExtensionlessUrlHandler和“递归太深；堆栈溢出" [英] ExtensionlessUrlHandler and "Recursion too deep; the stack overflowed"

问题描述

我正在尝试在我的计算机上使用其他开发人员的应用程序.该解决方案是使用Web API在VS 2015中构建的，而我正在使用64位IIS Express运行它.每个请求都返回500.0错误.请求跟踪日志对此进行了说明:

1517.  -MODULE_SET_RESPONSE_ERROR_STATUS 
ModuleName    ManagedPipelineHandler 
Notification  EXECUTE_REQUEST_HANDLER 
HttpStatus    500 
HttpReason    Internal Server Error 
HttpSubStatus 0 
ErrorCode     Recursion too deep; the stack overflowed. (0x800703e9) 
ConfigExceptionInfo

相关的配置部分如下所示:

<system.webServer>
<handlers>
  <remove name="OPTIONS" />
  <remove name="OPTIONSVerbHandler" />
  <remove name="TRACEVerbHandler" />
  <remove name="ExtensionlessUrlHandler-Integrated-4.0" />
  <remove name="ExtensionlessUrlHandler-ISAPI-4.0_32bit" />
  <remove name="ExtensionlessUrlHandler-ISAPI-4.0_64bit" />
  <add name="ExtensionlessUrlHandler-ISAPI-4.0_32bit" path="*" verb="*" modules="IsapiModule" scriptProcessor="%windir%\Microsoft.NET\Framework\v4.0.30319\aspnet_isapi.dll" preCondition="classicMode,runtimeVersionv4.0,bitness32" responseBufferLimit="0" />
  <add name="ExtensionlessUrlHandler-ISAPI-4.0_64bit" path="*" verb="*" modules="IsapiModule" scriptProcessor="%windir%\Microsoft.NET\Framework64\v4.0.30319\aspnet_isapi.dll" preCondition="classicMode,runtimeVersionv4.0,bitness64" responseBufferLimit="0" />
  <add name="ExtensionlessUrlHandler-Integrated-4.0" path="*" verb="*" type="System.Web.Handlers.TransferRequestHandler" preCondition="integratedMode,runtimeVersionv4.0" />
</handlers>
</system.webServer>

其他可能相关的事实

• 该机器以前从未用于虚拟主机，但是我已经做了很多VS2013开发，上周才安装了2015年以运行该项目.
• 该项目确实包含一些C#6.0功能，即新的字符串插值功能.

我什至将如何开始调试它?我在Google上的相关点击量为零.

解决方案

将项目迁移到VS2017时(在VS2010中工作)，我遇到了完全相同的问题，并设法通过遵循另一篇文章中的建议来解决此问题:

https://stackoverflow.com/a/29370225

因此，问题在于IISExpress使用与IIS不同的处理程序名称(不带"Handler"后缀)，因此您需要将以下删除脚本添加到web.config中:

<!--Handler in IIS-->
<remove name="ExtensionlessUrlHandler-ISAPI-4.0_32bit"/>
<remove name="ExtensionlessUrlHandler-ISAPI-4.0_64bit"/>
<remove name="ExtensionlessUrlHandler-Integrated-4.0"/>
<!--Handler in IISExpress-->
<remove name="ExtensionlessUrl-ISAPI-4.0_32bit" />
<remove name="ExtensionlessUrl-Integrated-4.0" />

希望这会有所帮助.

I'm trying to get a fellow developer's app working on my machine. Solution is built in VS 2015 using Web API and I'm running it using 64-bit IIS Express. Every request is returning 500.0 errors. Request tracing log says this about it:

1517.  -MODULE_SET_RESPONSE_ERROR_STATUS 
ModuleName    ManagedPipelineHandler 
Notification  EXECUTE_REQUEST_HANDLER 
HttpStatus    500 
HttpReason    Internal Server Error 
HttpSubStatus 0 
ErrorCode     Recursion too deep; the stack overflowed. (0x800703e9) 
ConfigExceptionInfo

The relevant config section looks like this:

<system.webServer>
<handlers>
  <remove name="OPTIONS" />
  <remove name="OPTIONSVerbHandler" />
  <remove name="TRACEVerbHandler" />
  <remove name="ExtensionlessUrlHandler-Integrated-4.0" />
  <remove name="ExtensionlessUrlHandler-ISAPI-4.0_32bit" />
  <remove name="ExtensionlessUrlHandler-ISAPI-4.0_64bit" />
  <add name="ExtensionlessUrlHandler-ISAPI-4.0_32bit" path="*" verb="*" modules="IsapiModule" scriptProcessor="%windir%\Microsoft.NET\Framework\v4.0.30319\aspnet_isapi.dll" preCondition="classicMode,runtimeVersionv4.0,bitness32" responseBufferLimit="0" />
  <add name="ExtensionlessUrlHandler-ISAPI-4.0_64bit" path="*" verb="*" modules="IsapiModule" scriptProcessor="%windir%\Microsoft.NET\Framework64\v4.0.30319\aspnet_isapi.dll" preCondition="classicMode,runtimeVersionv4.0,bitness64" responseBufferLimit="0" />
  <add name="ExtensionlessUrlHandler-Integrated-4.0" path="*" verb="*" type="System.Web.Handlers.TransferRequestHandler" preCondition="integratedMode,runtimeVersionv4.0" />
</handlers>
</system.webServer>

Other possibly relevant facts:

• The machine hasn't been used for web hosting before, but I've been doing a lot of VS2013 development and only installed 2015 last week to run this project.
• The project does contain some C# 6.0 features, namely the new string interpolation goodies.

How would I even begin to debug this? I'm getting zero relevant hits on Google.

解决方案

I had the exact same issue when migrating my projects to VS2017 (Was working in VS2010) and managed to resolve this by following the recommendation from another post:

https://stackoverflow.com/a/29370225

So the issue is that the IISExpress uses a different handler name (without the "Handler" postfix) from IIS, so you will need to add the following removal scripts to the web.config instead:

<!--Handler in IIS-->
<remove name="ExtensionlessUrlHandler-ISAPI-4.0_32bit"/>
<remove name="ExtensionlessUrlHandler-ISAPI-4.0_64bit"/>
<remove name="ExtensionlessUrlHandler-Integrated-4.0"/>
<!--Handler in IISExpress-->
<remove name="ExtensionlessUrl-ISAPI-4.0_32bit" />
<remove name="ExtensionlessUrl-Integrated-4.0" />

Hopefully this helps.

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