如何修复 dotnet ef 工具，找不到 .NET 位置

Question

我使用实体框架核心创建了一个 .net core 7 项目。嗯，当时我安装了.net core 6，所以我的全局ef工具还是版本6，然后我更新到版本7。这里我遇到了问题，它说我没有安装框架。我决定卸载 dotnet。然后我重新安装了sdk 7和全局ef工具。并出现新的错误。我尝试重新安装很多次。但还是这样，现在ef工具用不了了。

This is dotnet --info

    .NET SDK:
 Version:   7.0.101
 Commit:    bb24aafa11

Runtime Environment:
 OS Name:     ubuntu
 OS Version:  22.04
 OS Platform: Linux
 RID:         ubuntu.22.04-x64
 Base Path:   /usr/share/dotnet/sdk/7.0.101/

Host:
  Version:      7.0.1
  Architecture: x64
  Commit:       97203d38ba

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

.NET runtimes installed:
  Microsoft.AspNetCore.App 7.0.1 [/usr/share/dotnet/shared/Microsoft.AspNetCore.App]
  Microsoft.NETCore.App 7.0.1 [/usr/share/dotnet/shared/Microsoft.NETCore.App]

Other architectures found:
  None

Environment variables:
  DOTNET_ROOT       [/usr/lib/dotnet]

global.json file:
  Not found

Learn more:
  https://aka.ms/dotnet/info

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

这就是错误，

You must install .NET to run this application.

App: /home/apriza/.dotnet/tools/dotnet-ef
Architecture: x64
App host version: 7.0.1
.NET location: Not found

Learn about runtime installation:
https://aka.ms/dotnet/app-launch-failed

Download the .NET runtime:
https://aka.ms/dotnet-core-applaunch?missing_runtime=true&arch=x64&rid=ubuntu.22.04-x64&apphost_version=7.0.1

Answer 1

我找到了答案；/usr/share/dotnet我更改了dotnet 7中的根 dotnet env 。

export `DOTNET_ROOT=/usr/share/dotnet`