未找到框架 'Microsoft.AspNetCore.App'，版本“3.1.0”

Question

在 Mac 我安装了 Net Core:

.NET SDKs installed:
  5.0.100 [/usr/local/share/dotnet/sdk]

.NET runtimes installed:
  Microsoft.AspNetCore.App 5.0.0 [/usr/local/share/dotnet/shared/Microsoft.AspNetCore.App]
  Microsoft.NETCore.App 5.0.0 [/usr/local/share/dotnet/shared/Microsoft.NETCore.App]

我能够 运行 Net Core 5.0 项目，但是当我尝试 运行 NET Core 3.1 项目时，我得到：

It was not possible to find any compatible framework version
The framework 'Microsoft.AspNetCore.App', version '3.1.0' was not found.

我需要安装 SKD 3.1 吗？

Answer 1

是的，您需要安装 ASP.NET Core 3.1 SDK。