Home/ Questions/Quick solution to fix the error: http error 500.0 - ancm in-process handler load failure
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Adalyn White
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Asked: 2022-05-18T19:23:30+00:00 In:

Quick solution to fix the error: http error 500.0 – ancm in-process handler load failure

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I get the error: http error 500.0 – ancm in-process handler load failure when I try to run the program below:

dotnet ./MyApp.dll
<?xml version="1.0" encoding="utf-8"?>
  <configuration>
  <system.web>
  <customErrors mode="RemoteOnly"></customErrors>
  <identity impersonate="false" password="****" userName="****" />
  </system.web>
  <system.webServer>
  <handlers>
  <add name="aspNetCore" path="*" verb="*" modules="AspNetCoreModuleV2" resourceType="Unspecified" />
  </handlers>
  <aspNetCore processPath="dotnet" arguments=".\MyApp.dll" stdoutLogEnabled="false" hostingModel="inprocess" stdoutLogFile=".\logs\stdout" forwardWindowsAuthToken="false">
  <environmentVariables />
  </aspNetCore>
  </system.webServer>
 </configuration>

The error appears the system notifies as follows:

HTTP Error 500.0 - ANCM In-Process Handler Load Failure

I tried to solve it with another sample. I got the reference in the community forum, but it still returned an invalid result. If someone knows the solution, please give me the support. Thanks!

asp.net-core
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2 Answers

  1. Best Answer
    Expert

    The cause: I think this error causes in .Net core 2.2.

    The solution: To solve this error, you should replace

    web.config:

    <handlers>
    <add name="aspNetCore" path="*" verb="*" modules="AspNetCoreModuleV2" resourceType="Unspecified" />
</handlers>

    to

    <handlers>
    <add name="aspNetCore" path="*" verb="*" modules="AspNetCoreModule" resourceType="Unspecified" />
</handlers>
    • 0

  2. Open the .csproj file and under Project > PropertyGroup > AspNetCoreHostingModel, change the value “InProcess” to “OutOfProcess”. 

    <PropertyGroup>
<TargetFramework>netcoreapp2.2</TargetFramework>
<AspNetCoreHostingModel>OutOfProcess</AspNetCoreHostingModel>
    • 21

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