c# - 已安装的 .NET 6.0 SDK 未通过 dotnet --info 或 dotnet --list-sdks 显示，并且取决于 SDK 的命令失败 (Linux/Ubuntu)

Question

升级到最新的 dotnet 后，sdk 停止工作。我尝试重新安装最新版本但没有帮助。

$ dotnet --info

global.json file:
  Not found

Host:
  Version:      6.0.8
  Architecture: x64
  Commit:       55fb7ef977

.NET SDKs installed:
  No SDKs were found.

.NET runtimes installed:
  Microsoft.AspNetCore.App 6.0.8 [/usr/lib/dotnet/dotnet6-6.0.108/shared/Microsoft.AspNetCore.App]
  Microsoft.NETCore.App 6.0.8 [/usr/lib/dotnet/dotnet6-6.0.108/shared/Microsoft.NETCore.App]

Download .NET:
  https://aka.ms/dotnet-download

Learn about .NET Runtimes and SDKs:
  https://aka.ms/dotnet/runtimes-sdk-info

Answer 1

github issue #27129 上有一个解决方法:

1. 删除当前安装的软件包:

   sudo apt remove dotnet* aspnetcore* -y
   

2. 在 /etc/apt/preferences 中添加首选项文件:

   sudo touch /etc/apt/preferences &&
   sudo echo "Package: *" | sudo tee -a /etc/apt/preferences &&
   sudo echo "Pin: origin \"packages.microsoft.com\"" | sudo tee -a /etc/apt/preferences &&
   sudo echo Pin-Priority: 1001 | sudo tee -a /etc/apt/preferences
   

3. 再次安装 .NET 6 SDK:

   sudo apt update && sudo apt install -y dotnet-sdk-6.0