The specified framework 'Microsoft.NETCore.App', version '2.2.4' was not found

Question

I am getting this error when I try to deploy my .netcore 2.2 application:

It was not possible to find any compatible framework version The specified framework 'Microsoft.NETCore.App', version '2.2.4' was not found. - Check application dependencies and target a framework version installed at: C:\Program Files\dotnet\ - Installing .NET Core prerequisites might help resolve this problem: https://go.microsoft.com/fwlink/?LinkID=798306&clcid=0x409 - The .NET Core framework and SDK can be installed from: https://aka.ms/dotnet-download - The following versions are installed: 1.0.4 at [C:\Program Files\dotnet\shared\Microsoft.NETCore.App] 1.1.1 at [C:\Program Files\dotnet\shared\Microsoft.NETCore.App] 1.1.12 at [C:\Program Files\dotnet\shared\Microsoft.NETCore.App] 2.0.3 at [C:\Program Files\dotnet\shared\Microsoft.NETCore.App] 2.0.7 at [C:\Program Files\dotnet\shared\Microsoft.NETCore.App] 2.1.2 at [C:\Program Files\dotnet\shared\Microsoft.NETCore.App] 2.1.4 at [C:\Program Files\dotnet\shared\Microsoft.NETCore.App] 2.2.1 at [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]

In my local machine when I run:


    dotnet --version

I get this response: "2.2.102" and the app runs fine. I have also only installed Microsoft.NET Core Runtime - 2.2.1 and Microsoft .NET Core SDK 2.2.102. So version 2.2.4 is not supported.

This is my web.config:


    <?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>
          <modules runAllManagedModulesForAllRequests="true">
              <remove name="WebDAVModule"/> 
          </modules>
          <aspNetCore processPath="dotnet" arguments=".\Optics.API.dll" stdoutLogEnabled="false" stdoutLogFile=".\logs\stdout" hostingModel="InProcess" />
        </system.webServer>
      </location>
    </configuration>

This my .csproj:


    <Project Sdk="Microsoft.NET.Sdk.Web">
      <PropertyGroup>
        <TargetFramework>netcoreapp2.2</TargetFramework>
        <AspNetCoreHostingModel>InProcess</AspNetCoreHostingModel>
        <PublishWithAspNetCoreTargetManifest>false</PublishWithAspNetCoreTargetManifest>
      </PropertyGroup>
      <ItemGroup>
        <PackageReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Design" Version="2.2.1" PrivateAssets="All"/>
        <PackageReference Include="Hangfire.Core" Version="1.7.0"/>
        <PackageReference Include="Hangfire.SqlServer" Version="1.7.0"/>
        <PackageReference Include="Hangfire.AspNetCore" Version="1.7.0"/>
        <PackageReference Include="Microsoft.AspNetCore.App" Version="2.2.1"/>
        <PackageReference Include="AutoMapper.Extensions.Microsoft.DependencyInjection" Version="4.0.1"/>
        <PackageReference Include="Microsoft.AspNetCore.Razor.Design" Version="2.2.0"/>
      </ItemGroup>
    </Project>

I have also tested by removing the version of Microsoft.AspNetCore.App


    <PackageReference Include="Microsoft.AspNetCore.App"/>

But even with that change I get the same error. Furthermore the app is deployed in a shared hosting server and I have no authority to install any sdk or runtime, so I should work with the existing. Any clues?

What is the output of dotnet --info command on your local machine? Dependency graph can also be helpful. You can generate it by navigating to your project and then run dotnet msbuild /t:GenerateRestoreGraphFile /p:RestoreGraphOutputPath=graph.dg command which will generate graph.dg file which is json file. — Mohsin Mehmood
I run dotnet msbuild /t:GenerateRestoreGraphFile /p:RestoreGraphOutputPath=graph.dg but there was no reference for version 2.2.4 — tenten

tenten tenten · Accepted Answer · 2019-09-16T00:09:57

I fixed the problem.

So when I was publishing the app, I will run this command in vs code:

dotnet publish -c release

** This command still work in my gcp cloud vm, but not in shared hosting.

To fix it, I followed these steps:

Opened visual studio this time, not vs code.
Right click project's name and click publish.
In pick a publish target, I selected IIS,FTP,etc.
For connection, I selected File System and selected a target location.
In settings tab, I selected Configuration: Release, Target Framework: netcoreapp2.2, Deployment Mode: Self-Contained and Target Runtime: win-x64

I can't understand why my app was previously working for 2 months until now, with that code. I don't have a lot of experience, but my guess is that they uninstalled something from the server and in order to run the app needed to upload more files.

The specified framework 'Microsoft.NETCore.App', version '2.2.4' was not found

1 Answers