我试图在我的代码中添加更改，Linux的构建管道停止了工作。Windows和Mac的构建管道成功了。
我恢复了所有更改，因此自上次成功的PullRequest以来，没有更改，只有注解。
现在，它将失败，并显示以下消息：（缩写：“* 您必须安装或更新.NET才能运行此应用程序。*”）

Build started 11/20/2022 12:32:08.
     1>Project "/home/runner/work/isoxml-dotnet/isoxml-dotnet/isoxml_dotnet.sln" on node 1 (VSTest target(s)).
     1>ValidateSolutionConfiguration:
         Building solution configuration "Debug|Any CPU".
Test run for /home/runner/work/isoxml-dotnet/isoxml-dotnet/{package}/bin/Debug/netcoreapp3.1/{package}.dll (.NETCoreApp,Version=v3.1)
Microsoft (R) Test Execution Command Line Tool Version 17.3.1 (x64)
Copyright (c) Microsoft Corporation.  All rights reserved.

Starting test execution, please wait...
A total of 1 test files matched the specified pattern.
Testhost process for source(s) '/home/runner/work/isoxml-dotnet/isoxml-dotnet/{package}.Test/bin/Debug/netcoreapp3.1/{package}.Test.dll' exited with error: You must install or update .NET to run this application.
App: /home/runner/.nuget/packages/microsoft.testplatform.testhost/16.9.4/lib/netcoreapp2.1/testhost.dll
Architecture: x64
Framework: 'Microsoft.NETCore.App', version '3.1.0' (x64)
.NET location: /usr/share/dotnet/
The following frameworks were found:
  6.0.10 at [/usr/share/dotnet/shared/Microsoft.NETCore.App]
Learn about framework resolution:
https://aka.ms/dotnet/app-launch-failed
To install missing framework, download:
https://aka.ms/dotnet-core-applaunch?framework=Microsoft.NETCore.App&framework_version=3.1.0&arch=x64&rid=ubuntu.22.04-x64
. Please check the diagnostic logs for more information.

Test Run Aborted.
     1>Done Building Project "/home/runner/work/isoxml-dotnet/isoxml-dotnet/isoxml_dotnet.sln" (VSTest target(s)) -- FAILED.

Build FAILED.
    0 Warning(s)
    0 Error(s)

我的构建管道如下所示：

name: .NET

on:
  push:
    branches: [ "main" ]
  pull_request:
    branches: [ "main" ]

jobs:
  buildLinux:

    runs-on: ubuntu-latest
    strategy:
      matrix:
        dotnet-version: ['3.0', '3.1.x', '5.0.x','6.0.x' ]

    steps:
    - uses: actions/checkout@v3
    - name: Setup .NET
      uses: actions/setup-dotnet@v2
    - name: Restore dependencies
      run: dotnet restore
    - name: Build Linux
      run: dotnet build --no-restore
    - name: Test
      run: dotnet test --no-build --verbosity normal
  buildWindows:

    runs-on: windows-latest
    strategy:
      matrix:
        dotnet-version: ['3.0', '3.1.x', '5.0.x','6.0.x' ]

    steps:
    - uses: actions/checkout@v3
    - name: Setup .NET
      uses: actions/setup-dotnet@v2
    - name: Restore dependencies
      run: dotnet restore
    - name: Build Windows
      run: dotnet build --no-restore
    - name: Test
      run: dotnet test --no-build --verbosity normal
  buildMac:

    runs-on: macos-latest
    strategy:
      matrix:
        dotnet-version: ['3.0', '3.1.x', '5.0.x','6.0.x' ]

    steps:
    - uses: actions/checkout@v3
    - name: Setup .NET
      uses: actions/setup-dotnet@v2
    - name: Restore dependencies
      run: dotnet restore
    - name: Build Mac
      run: dotnet build --no-restore
    - name: Test
      run: dotnet test --no-build --verbosity normal

请注意，dotnet.yml中没有任何更改。
到目前为止，我尝试了：

• 还原所有更改;剩下的都是评论
• 将操作/setup-dotnet的版本更改为v3、v3.0.2、v2.0.1
  编辑备注：我删除了带有{package}的PackageName，因为它与解决方案无关。希望没有问题;）