ASP.NET Core 2.1 Preview 2 App Not working on Azure App Service

问题

I've been running my ASP.NET Core 2.1 Preview-1 app on Azure since this release became available. I had installed the ASP.NET Core runtime extensions through the portal and it's been working fine.

Now that Microsoft released ASP.NET Core 2.1 Preview-2, I installed the upgrade to the SDK. Updated my Nuget packages so that I have the preview-2 versions of everything. See my csproj file below:

I also removed the ASP.NET Core Runtime extensions from Azure App Service for my app which was showing 2.1 Preview-1. Instead installed ASP.NET Core 2.1 run times for x86 and x64 separately -- see below:

Compiled the app and published it to my Azure App service but I'm getting errors. First I got the 502.5 error. Now, I'm getting:

The specified CGI application encountered an error and the server terminated the process.

What am I missing here?

UPDATE:

As the answer suggested, I set my target to x86 (to play it safe) -- see below:

I removed the extension and the individual x86 and x64 run times and installed only the x86 with support for ASP.NET Core 2.1 preview-2 -- see below:

I restarted the app several times and I'm still getting 502.5.

I then tried to do a self deploy through CLI command line by issuing the following command:

dotnet publish -c Release -r win10-x64

And I get the following error:

C:\Program Files\dotnet\sdk\2.1.300-preview2-008530\Sdks\Microsoft.NET.Sdk\targets\Microsoft.NET.RuntimeIdentifierInference.targets(125,5): error : The RuntimeIdentifier platform 'win10-x64' and the PlatformTarget 'x86' must be compatible.

Does this mean I have the x86 version of the SDK installed and I must target x86?

I didn't have half the trouble that I'm going through now going from ASP.NET Core 2.0 to 2.1!!!!

UPDATE 2: Just ran dotnet --info in Kudu console. If I'm reading this correctly, I don't have the correct runtime.

Update 3:

I think this screen shot confirms what I was saying.

Update 4:

I installed x86 version of ASP.NET Core 2.1 Runtime -- see below:

When I run dotnet --info in Kudu console, I get the following which confuses me. I'm still not seeing the version I was expecting to see:

And when I hit the URL, I'm still getting 502.5 and the same message in Kudu console when I run dotnet MyApp.dll telling me that the correct version of the runtime is not found.

How will I get the correct version in there? I thought installing it through the portal would do it.

回答1:

We've managed to publish ASP.NET Core 2.1 RC1 webapp to Azure app-service using "self-contained" deployment mode.

Platform target: Any CPU

Here are the package references from our .csproj:

<PackageReference Include="Microsoft.AspNetCore.App" /> <PackageReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Design" Version="2.1.0-rc1-final" PrivateAssets="All" /> <PackageReference Include="Microsoft.AspNetCore.AzureAppServicesIntegration" Version="2.1.0-rc1-final" />

回答2:

The steps I took to get this working:

• Remove the 2.1-preview1 ASP.NET Core Runtime Extension.
• Check the application settings to see if you're running under 32-bit or 64-bit.
• Install only the matching (32- or 64-bit) ASP.NET Core 2.1 Runtime.
• Restart the web app.

Restarting is important - before restarting the .NET Core tools were the wrong version and I would also get 502.5 errors.

As you've installed both 32- and 64-bit runtimes I'd try removing the one that your application doesn't need and restart the web app.

回答3:

I got my project working on asp.net core 2.1 Preview 2 on Azure. I did the following steps;

1. Deleted the old asp.net core extension from Azure app service Extension
2. Using kudus deleted all the files in wwwroot folder of the site.

3. Installed asp.net core site extension from Azure as shown in the picture below and restarted the app service

4. Before deploying to Azure, the publish configuration option used is as depicted in the picture below,

That's it.

回答4:

Try adding a global.json file in your project folder with this content:

{
  "sdk": {
    "version": "2.1.300-preview2-008530"
  }
}

Restart your app after that to be on the safe side.

回答5:

Here's the only thing that seems to have worked for me.

I did a self-contained deployment using

dotnet publish --self-contained -r win10-x64 -c Release

I then had to do a manual deployment -- in my case using FTP.

I really would like this issue to be resolved but if it's not resolved by my next deployment, I'll do the zip deploy. Because my app has a ReactJs frontend, there were thousands of files to deploy and FTP was not a lot of fun!

Because this approach doesn't depend on what's installed or not installed on Azure App Service, it's a much more straight forward solution.

I still want to be able to simply click Publish in Visual Studio though!

UPDATE: I just did a zip deployment and I'm still getting the errors I was getting before even though zip deployment was successful. So, something is still not right!

回答6:

I had the same problem. Finally after 2 hours I fixed it.

Here is my configuration:

Extensions:

Console dotnet --info command:

Console kudu dotnet --version command:

a) Remember to restart your app after install extension.

b) Clear your wwwroot folder from old files and publish again.

回答7:

I had a problem with a complex website, so I created a simple one with just the App file set at the same version:

  <ItemGroup>
    <PackageReference Include="Microsoft.AspNetCore.App"  Version="2.1.3" />
  </ItemGroup>

and then, taken from Tim Diekmann's example, I did nothing apart from changing the Deployment Mode in the Azure publishing configuration Settings to Self-Contained - and that worked.

来源：https://stackoverflow.com/questions/49787507/asp-net-core-2-1-preview-2-app-not-working-on-azure-app-service