Need help with resolving Http error 500.31 on IIS

Question

User446393772 posted

Hello,
How are you doing?
I am following this tutorial https://docs.microsoft.com/en-us/aspnet/core/host-and-deploy/iis/?view=aspnetcore-3.1

for deploy Asp.net core 3.1 web app to IIS and I encountered this issue.
I installed the asp.Net Core 3.1.1- Windows Hosting Bundle(the installer ran, bit I dont know if this is installed in this IIS server), .Net Core SDK 3.1.100(x64), .Net Core SDK 3.1.1001(x64) from Visual Studio on my laptop. I got this when I navigate to the localhost.

HTTP Error 500.31 - ANCM Failed to Find Native Dependencies

Common solutions to this issue:

The specified version of Microsoft.NetCore.App or Microsoft.AspNetCore.App was not found.

Troubleshooting steps:

• Check the system event log for error messages
• Enable logging the application process' stdout messages
• Attach a debugger to the application process and inspect

In the tutoiral It asked me to install the hosting bundle on the server, but how do I run the installer on the iis server?  I apologize I am not a IIS expert.
I dont know where to find the IIS manage "Console" for running the

net stop was /y
net start w3svc

commands neither. Thank you.

Answer 1

User-782232518 posted

deploy Asp.net core 3.1 web app to IIS

Please open .deps.json in the artifacts folder to tell what's the required version of Microsoft.AspNetCore.App. Then run dotnet --info to see if you have that on the hosting machine.

Pay attention to bitness (32/64 bit) as well, as bitness must match.

Answer 2

User711641945 posted

Hi RaymondLei,

For deploy asp.net core 3.1 application on IIS,you need to make sure that you have installed the following package:

Reference:  https://dotnet.microsoft.com/download/dotnet-core/3.1

Could you  run command `dotnet --info` on your PMC and show it to us. Please remember do not leak your privacy.

Best Regards,

Rena

Answer 3

User446393772 posted

Hello,

Please open .deps.json in the artifacts folder to tell what's the required version of Microsoft.AspNetCore.App. Then run dotnet --info to see if you have that on the hosting machine.

I opend the .deps,json file and I saw these fields 
"runtimeTarget": {
"name": ".NETCoreApp,Version=v3.1",
"signature": ""
},
"compilationOptions": {
"defines": [
"TRACE",
"RELEASE",
"NETCOREAPP",
"NETCOREAPP3_1"
],
"languageVersion": "",
"platform": "",
"allowUnsafe": false,
"warningsAsErrors": false,
"optimize": true,
"keyFile": "",
"emitEntryPoint": true,
"xmlDoc": false,
"debugType": "portable"
},
"targets": {
".NETCoreApp,Version=v3.1": {
..... nuget library dependencies
}

Answer 4

User446393772 posted

Could you  run command `dotnet --info` on your PMC and show it to us.

Hello, I ran the command and I got the following:

.NET Core SDK (reflecting any global.json):
Version: 3.1.101
Commit: b377529961

Runtime Environment:
OS Name: Windows
OS Version: xxxxxxxxx
OS Platform: Windows
RID: win10-x64
Base Path: C:\Program Files\dotnet\sdk\3.1.101\

Host (useful for support):
Version: 3.1.1
Commit: a1388f194c

.NET Core SDKs installed:
1.1.14 [C:\xxxxxxxxxxxxx]
2.1.202 [C:\xxxxxxxxxxxxx]
2.1.509 [C:\xxxxxxxxxxxxx]
2.1.511 [C:\xxxxxxxxxxxxx]
2.2.402 [C:\xxxxxxxxxxxxx]
3.0.100 [C:\xxxxxxxxxxxxx]
3.1.100 [C:\xxxxxxxxxxxxx]
3.1.101 [C:\xxxxxxxxxxxxx]

.NET Core runtimes installed:
Microsoft.AspNetCore.All 2.1.13 [C:\xxxxxxxxxxxxx]
Microsoft.AspNetCore.All 2.1.15 [C:\xxxxxxxxxxxxx]
Microsoft.AspNetCore.All 2.2.7 [C:\xxxxxxxxxxxxx]
Microsoft.AspNetCore.App 2.1.13 [C:\xxxxxxxxxxxxx]
Microsoft.AspNetCore.App 2.1.15 [C:\xxxxxxxxxxxxxp]
Microsoft.AspNetCore.App 2.2.7 [C:\xxxxxxxxxxxxx]
Microsoft.AspNetCore.App 3.0.0 [C:\xxxxxxxxxxxxx]
Microsoft.AspNetCore.App 3.1.0 [C:\xxxxxxxxxxxxx]
Microsoft.AspNetCore.App 3.1.1 [C:\xxxxxxxxxxxxx]
Microsoft.NETCore.App 1.0.16 [C:\xxxxxxxxxxxxx]
Microsoft.NETCore.App 1.1.13 [C:\xxxxxxxxxxxxx]
Microsoft.NETCore.App 2.0.9 [C:\xxxxxxxxxxxxx]
Microsoft.NETCore.App 2.1.13 [C:\xxxxxxxxxxxxx]
Microsoft.NETCore.App 2.1.15 [C:\xxxxxxxxxxxxx]
Microsoft.NETCore.App 2.2.7 [C:\xxxxxxxxxxxxx]
Microsoft.NETCore.App 3.0.0 [C:\xxxxxxxxxxxxx]
Microsoft.NETCore.App 3.1.0 [C:\xxxxxxxxxxxxx]
Microsoft.NETCore.App 3.1.1 [C:\xxxxxxxxxxxxx]
Microsoft.WindowsDesktop.App 3.0.0 [C:\xxxxxxxxxxxxx]
Microsoft.WindowsDesktop.App 3.1.0 [C:\xxxxxxxxxxxxx]
Microsoft.WindowsDesktop.App 3.1.1 [C:\xxxxxxxxxxxxx]

Answer 5

User-474980206 posted

this looks like your dev box, not the IIS server. you need to remote login to the IIS server and run the commands.

how you remote will depends on what features are installed on the IIS server.