Unable to use .Net 6.0 preview

Description: I’m trying to update my project with the preview version of .NET 6, but when I try to set the version on setup-dotnet to 6 it doesn’t find the version to download.

Task version: actions/setup-dotnet@v1

Platform:

• Ubuntu
• macOS
• Windows

Runner type:

• Hosted
• Self-hosted

Repro steps:
My repo is private, but to reproduce just need to set the version to 6.0.0 or 6.0.0-preview.1

Expected behavior: It should download the sdk and setup all the env.

Actual behavior: It doesn’t find the preview, and show this error:

dotnet-install: Downloading link: https://dotnetcli.azureedge.net/dotnet/Sdk/6.0.0-preview/dotnet-sdk-6.0.0-preview-linux-x64.tar.gz
curl: (22) The requested URL returned error: 404 
dotnet-install: Cannot download: https://dotnetcli.azureedge.net/dotnet/Sdk/6.0.0-preview/dotnet-sdk-6.0.0-preview-linux-x64.tar.gz
dotnet-install: Downloading legacy link: https://dotnetcli.azureedge.net/dotnet/Sdk/6.0.0-preview/dotnet-dev-ubuntu.18.04-x64.6.0.0-preview.tar.gz
curl: (22) The requested URL returned error: 404 
dotnet-install: Cannot download: https://dotnetcli.azureedge.net/dotnet/Sdk/6.0.0-preview/dotnet-dev-ubuntu.18.04-x64.6.0.0-preview.tar.gz
dotnet_install: Error: Could not find/download: `.NET Core SDK` with version = 6.0.0-preview
dotnet_install: Error: Refer to: https://aka.ms/dotnet-os-lifecycle for information on .NET Core support

[GGG-KILLER]

v1.8.0 has been released which includes #110. Should resolve this by simply doing:

    - name: Install .NET Core
      uses: actions/setup-dotnet@v1
      with:
        dotnet-version: '6.0'
        include-prerelease: True

[JeroenBos]

For preview 2, specifying the dotnet-version to be 6.0.100-preview.2.21155.3 worked for me.

For any version, it’s the sdk version from the release metadata.