HTTP Error 502.5 - ANCM Out-Of-Process Startup Fai

Question

After upgrading my project to ASP.NET Core 2.2, I tried to run the application (locally of course) and the browser displayed an error message like in the below screenshot.

no more errors notified by visual studio error explorer. I don't know what's happen.

Answer 1

I was also getting the same issue. And when I looked at the Output window of my solution.

Then I was able to see a different error, which is "The target process exited without raising CoreCLR started event", to fix this I had to remove the Microsoft.AspNetCore.All from my Nuget Packages and install Microsoft.AspNetCore.App. I also had to install the correct .Net SDK from here. Once this is done, restarted my machine and open the solution, the error was gone. Hope it helps

Answer 2

you have 2 solution(this answer works on windows server I do not know anything about linux server).

first:

• copy all folder(except bin and obj folder) of your project to server

• open cmd in your project folder then run this command: dotnet run then all warning and error show to you(if you have error about above command not recognize download dot net core sdk from this link)

second:

• you must changed hostingModel attribute from OutOfProcess to inprocess in web.config and you can change stdoutLogEnabled to true value for get your project error in logs folder
• read your projects errors and fix those.

in my case web.config is:

<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <location path="." inheritInChildApplications="false">
    <system.webServer>
      <handlers>
        <add name="aspNetCore" path="*" verb="*" modules="AspNetCoreModule" resourceType="Unspecified" />
      </handlers>
      <aspNetCore processPath="dotnet" arguments=".\BMS.dll" stdoutLogEnabled="false" stdoutLogFile=".\logs\stdout" hostingModel="OutOfProcess" />
    </system.webServer>
  </location>
</configuration>

and I change it to:

<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <location path="." inheritInChildApplications="false">
    <system.webServer>
      <handlers>
        <add name="aspNetCore" path="*" verb="*" modules="AspNetCoreModuleV2" resourceType="Unspecified" />
      </handlers>
      <aspNetCore processPath="dotnet" arguments=".\BMS.dll" stdoutLogEnabled="true" stdoutLogFile=".\logs\stdout" hostingModel="inprocess" />
    </system.webServer>
  </location>
</configuration>

Answer 3

Be carefull publishing.

When i publish it to my PreProd envitoment this conf works well: Portable

But on my Prod enviroment that conf does not work. I had to choose the especificated one: win-x64

I dont know the reason about that. If someone know i'll gratefull to know!