aspnetcore: Could not find inprocess request handler. Captured output from invoking hostfxr:

Bug description

ASP.NET Core 2.2 (release) produces an error and stops w3wp.

To Reproduce

Just upgraded one of our ASP.NET Core 2.1.5 projects to v 2.2 released today. After deploying to a production server it fails at even running and shuts down a worker process.

I get the following error in EventLog from IIS AspNetCore Module V2:

Could not find inprocess request handler. Captured output from invoking hostfxr: Process Id: 5688. File Version: 12.2.18316.0. Description: IIS ASP.NET Core Module V2. Commit: ce8cf65589734f82b0536c543aba5bd60d0a5a98

Next error in Event log shows:

Faulting application name: w3wp.exe, version: 10.0.14393.0, time stamp: 0x57899b8a Faulting module name: ucrtbase.dll, version: 10.0.14393.2636, time stamp: 0x5bda7e9c Exception code: 0xc0000409 Fault offset: 0x000000000006e83e Faulting process id: 0x1638 Faulting application start time: 0x01d48c39225c1989 Faulting application path: c:\windows\system32\inetsrv\w3wp.exe Faulting module path: C:\Windows\System32\ucrtbase.dll Report Id: 685582aa-a590-4e03-b09a-5e3c36d7b758 Faulting package full name: Faulting package-relative application ID:

I have re-installed the x64 Hosting Bundle as well as the SDK.
I have restarted IIS as well as the entire server.
Did all 2.1-2.2 migrations too: https://docs.microsoft.com/en-us/aspnet/core/migration/21-to-22?view=aspnetcore-2.2&tabs=visual-studio

Web.config

<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <system.webServer>
    <handlers>
      <add name="aspNetCore" path="*" verb="*" modules="AspNetCoreModuleV2" resourceType="Unspecified" requireAccess="Script" />
    </handlers>
    <aspNetCore processPath="bin\IISSupport\VSIISExeLauncher.exe" arguments="-argFile IISExeLauncherArgs.txt" stdoutLogEnabled="true" stdoutLogFile=".\logs\log" />

and transformed:

    <aspNetCore processPath=".\myproject.exe" arguments="" stdoutLogEnabled="true" stdoutLogFile=".\logs\log" hostingModel="InProcess" />
    ...  
</system.webServer>
</configuration>

myproject.csproj

<Project Sdk="Microsoft.NET.Sdk.Web">

  <PropertyGroup>
    <TargetFramework>netcoreapp2.2</TargetFramework>
    <AspNetCoreHostingModel>InProcess</AspNetCoreHostingModel>
  </PropertyGroup>

  <ItemGroup>
    <PackageReference Include="BuildBundlerMinifier" Version="2.8.391" />
    <PackageReference Include="BundlerMinifier.Core" Version="2.8.391" />
    <PackageReference Include="Dapper" Version="1.50.5" />
    <PackageReference Include="HtmlAgilityPack" Version="1.8.10" />
    <PackageReference Include="MailKit" Version="2.1.0.2" />
    <PackageReference Include="Microsoft.AspNetCore.App" />
    <PackageReference Include="Microsoft.Extensions.Configuration.Binder" Version="2.2.0" />
    <PackageReference Include="Microsoft.jQuery.Unobtrusive.Validation" Version="3.2.11" />
    <PackageReference Include="Microsoft.VisualStudio.Web.BrowserLink" Version="2.2.0" PrivateAssets="All" />
    <PackageReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Design" Version="2.2.0" PrivateAssets="All" />
    <PackageReference Include="MiniProfiler.AspNetCore.Mvc" Version="4.0.138" PrivateAssets="All" />
    <PackageReference Include="SimpleMvcSitemap" Version="3.1.0" />
    <PackageReference Include="System.Runtime.Caching" Version="4.5.0" />
    <PackageReference Include="WebMarkupMin.AspNetCore2" Version="2.5.0" />
  </ItemGroup>

  <ItemGroup>
    <DotNetCliToolReference Include="BundlerMinifier.Core" Version="2.8.391" />
  </ItemGroup>
   ...
</Project>

AppCrash WER file:

Version=1 EventType=BEX64 EventTime=131884484251138051 ReportType=2 Consent=1 UploadTime=131884484271134063 ReportIdentifier=98c61dac-f830-11e8-a967-b3d4407f15b4 IntegratorReportIdentifier=05f3fcc5-1923-422a-8d29-c30395768b49 NsAppName=w3wp.exe AppSessionGuid=00000fc4-0000-002f-228e-f45a3d8cd401 TargetAppId=W:0000f519feec486de87ed73cb92d3cac802400000000!000054443c275eddd9bbe75c6d47cf9c24076b5d785c!w3wp.exe TargetAppVer=2016//07//16:02:27:22!15ee0!w3wp.exe BootId=4294967295 Response.BucketId=4fcf54b824683998223ee04fe6561bc8 Response.BucketTable=5 Response.LegacyBucketId=1314734775010204616 Response.type=4 Sig[0].Name=Application Name Sig[0].Value=w3wp.exe Sig[1].Name=Application Version Sig[1].Value=10.0.14393.0 Sig[2].Name=Application Timestamp Sig[2].Value=57899b8a Sig[3].Name=Fault Module Name Sig[3].Value=ucrtbase.dll Sig[4].Name=Fault Module Version Sig[4].Value=10.0.14393.2636 Sig[5].Name=Fault Module Timestamp Sig[5].Value=5bda7e9c Sig[6].Name=Exception Offset Sig[6].Value=000000000006e83e Sig[7].Name=Exception Code Sig[7].Value=c0000409 Sig[8].Name=Exception Data Sig[8].Value=0000000000000007 DynamicSig[1].Name=OS Version DynamicSig[1].Value=10.0.14393.2.0.0.400.8 DynamicSig[2].Name=Locale ID DynamicSig[2].Value=1033 DynamicSig[22].Name=Additional Information 1 DynamicSig[22].Value=d438 DynamicSig[23].Name=Additional Information 2 DynamicSig[23].Value=d43856d6a5ea3710632eef2cd4b9f269 DynamicSig[24].Name=Additional Information 3 DynamicSig[24].Value=4cff DynamicSig[25].Name=Additional Information 4 DynamicSig[25].Value=4cffb5e35ebb19df1ea334a44775f589 UI[2]=c:\windows\system32\inetsrv\w3wp.exe UI[5]=Check online for a solution (recommended) UI[6]=Check for a solution later (recommended) UI[7]=Close UI[8]=IIS Worker Process stopped working and was closed UI[9]=A problem caused the application to stop working correctly. Windows will notify you if a solution is available. UI[10]=&Close LoadedModule[0]=c:\windows\system32\inetsrv\w3wp.exe LoadedModule[1]=C:\Windows\SYSTEM32\ntdll.dll LoadedModule[2]=C:\Windows\System32\KERNEL32.DLL LoadedModule[3]=C:\Windows\System32\KERNELBASE.dll LoadedModule[4]=C:\Windows\System32\msvcrt.dll LoadedModule[5]=C:\Windows\System32\combase.dll LoadedModule[6]=C:\Windows\System32\ucrtbase.dll LoadedModule[7]=C:\Windows\System32\RPCRT4.dll LoadedModule[8]=C:\Windows\System32\bcryptPrimitives.dll LoadedModule[9]=c:\windows\system32\inetsrv\iisutil.dll LoadedModule[10]=C:\Windows\System32\advapi32.dll LoadedModule[11]=C:\Windows\System32\sechost.dll LoadedModule[12]=C:\Windows\System32\WS2_32.dll LoadedModule[13]=C:\Windows\System32\kernel.appcore.dll LoadedModule[14]=C:\Windows\SYSTEM32\ntmarta.dll LoadedModule[15]=C:\Windows\System32\user32.dll LoadedModule[16]=C:\Windows\System32\win32u.dll LoadedModule[17]=C:\Windows\System32\GDI32.dll LoadedModule[18]=C:\Windows\System32\gdi32full.dll LoadedModule[19]=c:\windows\system32\inetsrv\w3wphost.dll LoadedModule[20]=C:\Windows\System32\OLEAUT32.dll LoadedModule[21]=C:\Windows\System32\msvcp_win.dll LoadedModule[22]=c:\windows\system32\inetsrv\nativerd.dll LoadedModule[23]=C:\Windows\SYSTEM32\ncrypt.dll LoadedModule[24]=C:\Windows\SYSTEM32\XmlLite.dll LoadedModule[25]=C:\Windows\SYSTEM32\bcrypt.dll LoadedModule[26]=C:\Windows\SYSTEM32\NTASN1.dll LoadedModule[27]=C:\Windows\SYSTEM32\ktmw32.dll LoadedModule[28]=c:\windows\system32\inetsrv\IISRES.DLL LoadedModule[29]=C:\Windows\SYSTEM32\CRYPTSP.dll LoadedModule[30]=C:\Windows\system32\rsaenh.dll LoadedModule[31]=C:\Windows\SYSTEM32\CRYPTBASE.dll LoadedModule[32]=C:\Windows\System32\clbcatq.dll LoadedModule[33]=C:\Windows\system32\mlang.dll LoadedModule[34]=C:\Windows\system32\inetsrv\iiscore.dll LoadedModule[35]=c:\windows\system32\inetsrv\W3TP.dll LoadedModule[36]=c:\windows\system32\inetsrv\w3dt.dll LoadedModule[37]=C:\Windows\SYSTEM32\SspiCli.dll LoadedModule[38]=C:\Windows\SYSTEM32\HTTPAPI.dll LoadedModule[39]=C:\Windows\system32\napinsp.dll LoadedModule[40]=C:\Windows\System32\mswsock.dll LoadedModule[41]=C:\Windows\SYSTEM32\DNSAPI.dll LoadedModule[42]=C:\Windows\System32\NSI.dll LoadedModule[43]=C:\Windows\SYSTEM32\IPHLPAPI.DLL LoadedModule[44]=C:\Windows\System32\winrnr.dll LoadedModule[45]=C:\Windows\system32\NLAapi.dll LoadedModule[46]=C:\Windows\System32\rasadhlp.dll LoadedModule[47]=C:\Windows\System32\fwpuclnt.dll LoadedModule[48]=C:\Windows\System32\inetsrv\loghttp.dll LoadedModule[49]=C:\Windows\System32\inetsrv\cachuri.dll LoadedModule[50]=C:\Windows\System32\inetsrv\cachfile.dll LoadedModule[51]=C:\Windows\System32\inetsrv\cachtokn.dll LoadedModule[52]=C:\Windows\System32\inetsrv\cachhttp.dll LoadedModule[53]=C:\Windows\System32\inetsrv\compstat.dll LoadedModule[54]=C:\Windows\System32\inetsrv\defdoc.dll LoadedModule[55]=C:\Windows\System32\inetsrv\dirlist.dll LoadedModule[56]=C:\Windows\System32\inetsrv\protsup.dll LoadedModule[57]=C:\Windows\System32\inetsrv\static.dll LoadedModule[58]=C:\Windows\System32\inetsrv\authanon.dll LoadedModule[59]=C:\Windows\System32\inetsrv\modrqflt.dll LoadedModule[60]=C:\Windows\System32\inetsrv\custerr.dll LoadedModule[61]=C:\Windows\System32\inetsrv\compdyn.dll LoadedModule[62]=C:\Windows\System32\inetsrv\isapi.dll LoadedModule[63]=C:\Windows\System32\inetsrv\filter.dll LoadedModule[64]=C:\Windows\System32\inetsrv\iiswsock.dll LoadedModule[65]=C:\Windows\SYSTEM32\websocket.dll LoadedModule[66]=C:\Windows\System32\inetsrv\warmup.dll LoadedModule[67]=C:\Windows\System32\inetsrv\validcfg.dll LoadedModule[68]=C:\Windows\system32\inetsrv\rewrite.dll LoadedModule[69]=C:\Windows\system32\inetsrv\aspnetcore.dll LoadedModule[70]=C:\Windows\SYSTEM32\WINHTTP.dll LoadedModule[71]=C:\Windows\SYSTEM32\ondemandconnroutehelper.dll LoadedModule[72]=C:\Program Files\IIS\Asp.Net Core Module\V2\aspnetcorev2.dll LoadedModule[73]=C:\Windows\System32\SHELL32.dll LoadedModule[74]=C:\Windows\System32\cfgmgr32.dll LoadedModule[75]=C:\Windows\System32\windows.storage.dll LoadedModule[76]=C:\Windows\System32\powrprof.dll LoadedModule[77]=C:\Windows\System32\shlwapi.dll LoadedModule[78]=C:\Windows\System32\shcore.dll LoadedModule[79]=C:\Windows\System32\profapi.dll LoadedModule[80]=C:\Windows\SYSTEM32\VERSION.dll LoadedModule[81]=C:\Windows\System32\CRYPT32.dll LoadedModule[82]=C:\Windows\System32\MSASN1.dll LoadedModule[83]=C:\Windows\SYSTEM32\DPAPI.DLL LoadedModule[84]=C:\Program Files\IIS\IIS Compression\iisbrotli.dll LoadedModule[85]=C:\Program Files\IIS\IIS Compression\iiszlib.dll State[0].Key=Transport.DoneStage1 State[0].Value=1 FriendlyEventName=Stopped working ConsentKey=BEX64 AppName=IIS Worker Process AppPath=c:\windows\system32\inetsrv\w3wp.exe NsPartner=windows NsGroup=windows8 ApplicationIdentity=FCBB9E96A3E01E440E0E4D9368EBD4AC MetadataHash=-2126433667

Additional context

Project runs fine locally on Windows 10 (1803 / 17134.441) but not on production server. Windows Server 2016 (1607 / 14393.2639) with all the latest Windows Updates.

dotnet --info from server: C:\Users\Administrator>dotnet --info .NET Core SDK (reflecting any global.json): Version: 2.2.100 Commit: b9f2fa0ca8

Runtime Environment: OS Name: Windows OS Version: 10.0.14393 OS Platform: Windows RID: win10-x64 Base Path: C:\Program Files\dotnet\sdk\2.2.100\

Host (useful for support): Version: 2.2.0 Commit: 1249f08fed

.NET Core SDKs installed: 2.1.300 [C:\Program Files\dotnet\sdk] 2.1.301 [C:\Program Files\dotnet\sdk] 2.2.100 [C:\Program Files\dotnet\sdk]

.NET Core runtimes installed: Microsoft.AspNetCore.All 2.1.0 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.All] Microsoft.AspNetCore.All 2.1.1 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.All] Microsoft.AspNetCore.All 2.1.2 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.All] Microsoft.AspNetCore.All 2.1.3 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.All] Microsoft.AspNetCore.All 2.1.4 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.All] Microsoft.AspNetCore.All 2.1.5 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.All] Microsoft.AspNetCore.All 2.2.0 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.All] Microsoft.AspNetCore.App 2.1.0 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App] Microsoft.AspNetCore.App 2.1.1 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App] Microsoft.AspNetCore.App 2.1.2 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App] Microsoft.AspNetCore.App 2.1.3 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App] Microsoft.AspNetCore.App 2.1.4 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App] Microsoft.AspNetCore.App 2.1.5 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App] Microsoft.AspNetCore.App 2.2.0 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App] Microsoft.NETCore.App 2.0.5 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App] Microsoft.NETCore.App 2.1.0 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App] Microsoft.NETCore.App 2.1.1 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App] Microsoft.NETCore.App 2.1.2 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App] Microsoft.NETCore.App 2.1.3 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App] Microsoft.NETCore.App 2.1.4 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App] Microsoft.NETCore.App 2.1.5 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App] Microsoft.NETCore.App 2.2.0 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]

And from local pc: .NET Core SDK (reflecting any global.json): Version: 2.2.100 Commit: b9f2fa0ca8

Runtime Environment: OS Name: Windows OS Version: 10.0.17134 OS Platform: Windows RID: win10-x64 Base Path: C:\Program Files\dotnet\sdk\2.2.100\

Host (useful for support): Version: 2.2.0 Commit: 1249f08fed

.NET Core SDKs installed: 2.1.201 [C:\Program Files\dotnet\sdk] 2.1.202 [C:\Program Files\dotnet\sdk] 2.1.300 [C:\Program Files\dotnet\sdk] 2.1.301 [C:\Program Files\dotnet\sdk] 2.1.400 [C:\Program Files\dotnet\sdk] 2.1.401 [C:\Program Files\dotnet\sdk] 2.1.402 [C:\Program Files\dotnet\sdk] 2.1.403 [C:\Program Files\dotnet\sdk] 2.1.500 [C:\Program Files\dotnet\sdk] 2.2.100 [C:\Program Files\dotnet\sdk]

.NET Core runtimes installed: Microsoft.AspNetCore.All 2.1.0 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.All] Microsoft.AspNetCore.All 2.1.1 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.All] Microsoft.AspNetCore.All 2.1.2 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.All] Microsoft.AspNetCore.All 2.1.3 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.All] Microsoft.AspNetCore.All 2.1.4 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.All] Microsoft.AspNetCore.All 2.1.5 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.All] Microsoft.AspNetCore.All 2.1.6 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.All] Microsoft.AspNetCore.All 2.2.0 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.All] Microsoft.AspNetCore.App 2.1.0 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App] Microsoft.AspNetCore.App 2.1.1 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App] Microsoft.AspNetCore.App 2.1.2 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App] Microsoft.AspNetCore.App 2.1.3 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App] Microsoft.AspNetCore.App 2.1.4 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App] Microsoft.AspNetCore.App 2.1.5 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App] Microsoft.AspNetCore.App 2.1.6 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App] Microsoft.AspNetCore.App 2.2.0 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App] Microsoft.NETCore.App 2.0.7 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App] Microsoft.NETCore.App 2.0.9 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App] Microsoft.NETCore.App 2.1.0 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App] Microsoft.NETCore.App 2.1.1 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App] Microsoft.NETCore.App 2.1.2 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App] Microsoft.NETCore.App 2.1.3-servicing-26724-03 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App] Microsoft.NETCore.App 2.1.3 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App] Microsoft.NETCore.App 2.1.4 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App] Microsoft.NETCore.App 2.1.5 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App] Microsoft.NETCore.App 2.1.6 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App] Microsoft.NETCore.App 2.2.0 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]

About this issue

Original URL
State: closed
Created 6 years ago
Comments: 32 (13 by maintainers)

Most upvoted comments

@pakrym I DID NOT have Windows Hosting Bundle installed. But…now I do…AND IT WORKS. Thank you sir! To be honest, had never heard of Windows Hosting Bundle until now. (Am running on Windows Server 2012).

brendanalexdr on Dec 5, 2018

@pakrym It’s what you said it was. For some reason this server’s application pool defaults is configured with Enable 32-Bit Applications as True

BennieCopeland on Dec 5, 2018

I’m going to close this thread because everyone issues seem to be resolved and work to improve messaging in these cases was filed.

To summarise: 0. Install Windows Hosting Bundle

Make sure standalone apps are published with the same bitness as IIS they are running in (usually x64)
Make sure Enable 32-Bit Applications option is not set on the app pool.
Clean publish directory before switching from standalone to portable (framework-dependent) publish.
There is a known issue where CurrentDirectory returns c:\windows\system32\inetsrv when running In-Process please refer to #4206 for more details on that.
Consider switching to portable publish, it has a lot of advantages over standalone.

pakrym on Dec 6, 2018

You are hitting CurrentDirectory issue see https://github.com/aspnet/AspNetCore/issues/4206 for more details.

Microsoft.AspNetCore.Routing.RouteCreationException: An 
error occurred while creating the route with name 'LocalizedDefault' and template '{lang:lang}/{controller=Home}/{action=Index}/{id?}'. ---> Microsoft.AspNetCore.Routing.RouteCreationException: An 
error occurred while trying to create an instance of 'myproject.LanguageRouteConstraint'. ---> System.Reflection.TargetInvocationException: Exception 
has been thrown by the target of an invocation. ---> System.IO.FileNotFoundException:
 The configuration file 'appsettings.json' was not found and is not optional. The physical path is 'c:\windows\system32\inetsrv\appsettings.json'.

pakrym on Dec 5, 2018

Sent a PR for the docs to add the following line:

For 64-bit application make sure that Enable 32-Bit Applications is set to false either under the Set Application Pool Defaults or under Advanced Settings for your specific application pool.

Code-DJ on Dec 5, 2018

@DamianEdwards filed https://github.com/aspnet/AspNetCore/issues/4432

pakrym on Dec 5, 2018

@rr222cy @Code-DJ Check that the bitness of your standalone published app matches the correct Enable 32-Bit Applications setting.

jkotalik on Dec 5, 2018

@nukuuk do you have Windows Hosting Bundle installed? Are you running on Azure?

pakrym on Dec 5, 2018

Just ran in to the same issue, the temporary fix for me was to change modules="AspNetCoreModuleV2" back to modules="AspNetCoreModule" and that made my website come back online again.

roos-robert on Dec 5, 2018