Cannot find Microsoft.NETCore.App in Ubuntu after installing .NET 9

[eduherminio]

Description:

Cannot find Framework: 'Microsoft.NETCore.App', version '9.0.0' (x64) after installing .NET 9.0.102

Job definition

jobs:

  benchmark:
    runs-on: ${{ matrix.os }}

    strategy:
      matrix:
        os: [ubuntu-latest, windows-latest, macOS-latest, macOS-13]
      fail-fast: false

    env:
      DOTNET_VERSION: 9.0.x
      DOTNET_CLI_TELEMETRY_OPTOUT: 1

    steps:
    - uses: actions/checkout@v4

    - name: Setup .NET
      uses: actions/setup-dotnet@v4
      with:
        dotnet-version: ${{ env.DOTNET_VERSION }}

    - name: Nuget cache
      uses: actions/cache@v4
      with:
        path:
          ~/.nuget/packages
        key: ${{ runner.os }}-nuget-${{ hashFiles('**/packages.lock.json') }}
        restore-keys: |
          ${{ runner.os }}-nuget-

    - name: Build
      run: dotnet build -c Release
      working-directory: ./src/Lynx.Benchmark

    - name: Run ${{ github.event.inputs.benchmark_name }} benchmark
      if: matrix.os == 'windows-latest'
      run: dotnet run -c Release --no-build --filter '${{ github.event.inputs.benchmark_name }}'
      working-directory: ./src/Lynx.Benchmark

    - name: Run ${{ github.event.inputs.benchmark_name }} benchmark with sudo
      if: matrix.os != 'windows-latest'
      run: sudo dotnet run -c Release --no-build --filter '${{ github.event.inputs.benchmark_name }}'
      working-directory: ./src/Lynx.Benchmark

```

Logs

2025-02-01T19:11:06.3290450Z dotnet-install: Attempting to download using aka.ms link https://builds.dotnet.microsoft.com/dotnet/Runtime/8.0.12/dotnet-runtime-8.0.12-linux-x64.tar.gz
2025-02-01T19:11:06.5111141Z dotnet-install: Remote file https://builds.dotnet.microsoft.com/dotnet/Runtime/8.0.12/dotnet-runtime-8.0.12-linux-x64.tar.gz size is 31279408 bytes.
2025-02-01T19:11:06.5118247Z dotnet-install: Extracting archive from https://builds.dotnet.microsoft.com/dotnet/Runtime/8.0.12/dotnet-runtime-8.0.12-linux-x64.tar.gz
2025-02-01T19:11:07.1488364Z dotnet-install: Downloaded file size is 31279408 bytes.
2025-02-01T19:11:07.1489331Z dotnet-install: The remote and local file sizes are equal.
2025-02-01T19:11:07.1792445Z dotnet-install: Installed version is 8.0.12
2025-02-01T19:11:07.1854654Z dotnet-install: Adding to current process PATH: `/usr/share/dotnet`. Note: This change will be visible only when sourcing script.
2025-02-01T19:11:07.1857355Z dotnet-install: Note that the script does not resolve dependencies during installation.
2025-02-01T19:11:07.1859124Z dotnet-install: To check the list of dependencies, go to https://learn.microsoft.com/dotnet/core/install, select your operating system and check the "Dependencies" section.
2025-02-01T19:11:07.1859956Z dotnet-install: Installation finished successfully.
2025-02-01T19:11:07.1884657Z [command]/home/runner/work/_actions/actions/setup-dotnet/v4/externals/install-dotnet.sh --skip-non-versioned-files --channel 9.0
2025-02-01T19:11:07.4164350Z dotnet-install: Attempting to download using aka.ms link https://builds.dotnet.microsoft.com/dotnet/Sdk/9.0.102/dotnet-sdk-9.0.102-linux-x64.tar.gz
2025-02-01T19:11:08.2418660Z dotnet-install: Remote file https://builds.dotnet.microsoft.com/dotnet/Sdk/9.0.102/dotnet-sdk-9.0.102-linux-x64.tar.gz size is 210604728 bytes.
2025-02-01T19:11:08.2427795Z dotnet-install: Extracting archive from https://builds.dotnet.microsoft.com/dotnet/Sdk/9.0.102/dotnet-sdk-9.0.102-linux-x64.tar.gz
2025-02-01T19:11:12.5956518Z dotnet-install: Downloaded file size is 210604728 bytes.
2025-02-01T19:11:12.5957977Z dotnet-install: The remote and local file sizes are equal.
2025-02-01T19:11:12.8624035Z dotnet-install: Installed version is 9.0.102
2025-02-01T19:11:12.8685413Z dotnet-install: Adding to current process PATH: `/usr/share/dotnet`. Note: This change will be visible only when sourcing script.
2025-02-01T19:11:12.8687292Z dotnet-install: Note that the script does not resolve dependencies during installation.
2025-02-01T19:11:12.8688760Z dotnet-install: To check the list of dependencies, go to https://learn.microsoft.com/dotnet/core/install, select your operating system and check the "Dependencies" section.
2025-02-01T19:11:12.8690084Z dotnet-install: Installation finished successfully.
2025-02-01T19:11:12.9567767Z ##[group]Run actions/cache@v4
2025-02-01T19:11:12.9568061Z with:
2025-02-01T19:11:12.9568255Z   path: ~/.nuget/packages
2025-02-01T19:11:12.9568468Z   key: Linux-nuget-
2025-02-01T19:11:12.9568669Z   restore-keys: Linux-nuget-

2025-02-01T19:11:12.9568895Z   enableCrossOsArchive: false
2025-02-01T19:11:12.9569107Z   fail-on-cache-miss: false
2025-02-01T19:11:12.9569334Z   lookup-only: false
2025-02-01T19:11:12.9569523Z   save-always: false
2025-02-01T19:11:12.9569695Z env:
2025-02-01T19:11:12.9569861Z   DOTNET_VERSION: 9.0.x
2025-02-01T19:11:12.9570065Z   DOTNET_CLI_TELEMETRY_OPTOUT: 1
2025-02-01T19:11:12.9570293Z   DOTNET_ROOT: /usr/share/dotnet
2025-02-01T19:11:12.9570507Z ##[endgroup]
2025-02-01T19:11:13.8732571Z Cache Size: ~168 MB (175648060 B)
2025-02-01T19:11:13.8775003Z [command]/usr/bin/tar -xf /home/runner/work/_temp/d0469f95-f2b0-43be-b5ef-2ae15ffb58b8/cache.tzst -P -C /home/runner/work/Lynx/Lynx --use-compress-program unzstd
2025-02-01T19:11:14.2371708Z Received 175648060 of 175648060 (100.0%), 167.3 MBs/sec
2025-02-01T19:11:15.6320148Z Cache restored successfully
2025-02-01T19:11:15.7523292Z Cache restored from key: Linux-nuget-
2025-02-01T19:11:15.7680631Z ##[group]Run dotnet build -c Release
2025-02-01T19:11:15.7681019Z �[36;1mdotnet build -c Release�[0m
2025-02-01T19:11:15.7712949Z shell: /usr/bin/bash -e {0}
2025-02-01T19:11:15.7713205Z env:
2025-02-01T19:11:15.7713378Z   DOTNET_VERSION: 9.0.x
2025-02-01T19:11:15.7713615Z   DOTNET_CLI_TELEMETRY_OPTOUT: 1
2025-02-01T19:11:15.7713855Z   DOTNET_ROOT: /usr/share/dotnet
2025-02-01T19:11:15.7714073Z ##[endgroup]
2025-02-01T19:11:16.7728462Z   Determining projects to restore...
2025-02-01T19:11:18.8449788Z   Restored /home/runner/work/Lynx/Lynx/src/Lynx/Lynx.csproj (in 1.65 sec).
2025-02-01T19:11:18.9702368Z   Restored /home/runner/work/Lynx/Lynx/src/Lynx.Benchmark/Lynx.Benchmark.csproj (in 1.79 sec).
2025-02-01T19:11:39.1946161Z   Lynx -> /home/runner/work/Lynx/Lynx/src/Lynx/bin/Release/net9.0/Lynx.dll
2025-02-01T19:11:41.7331933Z   Lynx.Benchmark -> /home/runner/work/Lynx/Lynx/src/Lynx.Benchmark/bin/Release/net9.0/Lynx.Benchmark.dll
2025-02-01T19:11:41.7389913Z 
2025-02-01T19:11:41.7395290Z Build succeeded.
2025-02-01T19:11:41.7395693Z     0 Warning(s)
2025-02-01T19:11:41.7398165Z     0 Error(s)
2025-02-01T19:11:41.7402838Z 
2025-02-01T19:11:41.7403297Z Time Elapsed 00:00:25.43
2025-02-01T19:11:41.7719993Z ##[group]Run sudo dotnet run -c Release --no-build --filter '*PawnIslandsBenchmark*'
2025-02-01T19:11:41.7720645Z �[36;1msudo dotnet run -c Release --no-build --filter '*PawnIslandsBenchmark*'�[0m
2025-02-01T19:11:41.7749902Z shell: /usr/bin/bash -e {0}
2025-02-01T19:11:41.7750142Z env:
2025-02-01T19:11:41.7750310Z   DOTNET_VERSION: 9.0.x
2025-02-01T19:11:41.7750534Z   DOTNET_CLI_TELEMETRY_OPTOUT: 1
2025-02-01T19:11:41.7750775Z   DOTNET_ROOT: /usr/share/dotnet
2025-02-01T19:11:41.7751005Z ##[endgroup]
2025-02-01T19:11:46.6786128Z You must install or update .NET to run this application.
2025-02-01T19:11:46.6786842Z 
2025-02-01T19:11:46.6787389Z App: /home/runner/work/Lynx/Lynx/src/Lynx.Benchmark/bin/Release/net9.0/Lynx.Benchmark
2025-02-01T19:11:46.6788134Z Architecture: x64
2025-02-01T19:11:46.6788717Z Framework: 'Microsoft.NETCore.App', version '9.0.0' (x64)
2025-02-01T19:11:46.6789316Z .NET location: /usr/lib/dotnet
2025-02-01T19:11:46.6789585Z 
2025-02-01T19:11:46.6789847Z The following frameworks were found:
2025-02-01T19:11:46.6790381Z   8.0.12 at [/usr/lib/dotnet/shared/Microsoft.NETCore.App]
2025-02-01T19:11:46.6790776Z 
2025-02-01T19:11:46.6790922Z Learn more:
2025-02-01T19:11:46.6791322Z https://aka.ms/dotnet/app-launch-failed
2025-02-01T19:11:46.6791655Z 
2025-02-01T19:11:46.6791879Z To install missing framework, download:
2025-02-01T19:11:46.6793152Z https://aka.ms/dotnet-core-applaunch?framework=Microsoft.NETCore.App&framework_version=9.0.0&arch=x64&rid=ubuntu.24.04-x64&os=ubuntu.24.04
2025-02-01T19:11:46.6913710Z ##[error]Process completed with exit code 150.
2025-02-01T19:11:46.7039801Z Post job cleanup

Task version:
actions/setup-dotnet@v4

Platform:

• Ubuntu

Runner type:

• Hosted
• Self-hosted

Repro steps:

Run:
https://github.com/lynx-chess/Lynx/actions/runs/13091616851/job/36528899896

Complete logs:

job-logs.txt

[gowridurgad]

Hi @eduherminio,
Thank you for creating this issue. We will investigate it and provide feedback as soon as we have some updates.

[mahabaleshwars]

Hi @eduherminio, I’ve looked into the issue, and it seems to be occurring with the ubuntu-latest (Ubuntu 24.04) runner. However, it runs successfully on the ubuntu-22.04 runner. As a workaround, I suggest using the ubuntu-22.04 runner for now.

[eduherminio]

Thanks for looking into it @mahabaleshwars, I'll downgrade the ubuntu version if needed until you find the root cause.

[mahabaleshwars]

Hi @eduherminio,

Root Cause:
The installation done via the workflow is placing .NET at /usr/share/dotnet/, whereas the pre-installed .NET in GitHub runner images is located at /usr/lib/dotnet. As a non-sudo user, it correctly references /usr/share/dotnet/ and works as expected. However, when using sudo, it points to /usr/bin/dotnet, which has a symlink to /usr/lib/dotnet.

Possible Solutions:

1. Run the command without sudo to ensure it uses /usr/share/dotnet/, where .NET 9 was installed through the workflow.
2. Update the symlink of /usr/bin/dotnet to point to /usr/share/dotnet/. Here's a code snippet for that:

- name: Update dotnet symlink to use .NET 9.0
  run: |
    # Check if dotnet is pointing to the correct location
    if [[ $(ls -l /usr/bin/dotnet) != *""/usr/share/dotnet/dotnet""* ]]; then
      echo ""Updating dotnet symlink to use .NET 9.0""
      sudo ln -sf /usr/share/dotnet/dotnet /usr/bin/dotnet
    else
      echo ""Symlink is already correct.""
    fi

Important Note:
After updating the symlink, if you need to use the runner's pre-installed version of .NET, you will have to manually update the symlink again.

Let me know if you have any further questions!

[eduherminio]

After updating the symlink, if you need to use the runner's pre-installed version of .NET, you will have to manually update the symlink again.

@mahabaleshwars Will this symlink fix work in case .NET 9 is (ever) preinstalled in the runner, and therefore setup-dotnet doesn't install anything?