Ubuntu上C#的VSCode自动补全

Question

我正在尝试在我的Ubuntu 20.04计算机上设置一个环境来编写Unity项目的代码。

我想使用VSCode来编写我的C#代码。根据需要，我安装了.NET SDK 5.0.201。

因此，我尝试运行一些代码，但VSCode似乎无法识别我的.NET安装。每次打开VSCode时，我都会收到以下消息：

The .NET Core SDK cannot be located. .NET Core debugging will not be enabled. Make sure the .NET Core SDK is installed and is on the path.

而且(主要问题)，我的C#代码没有自动完成功能。

我真的不明白这里有什么问题。我的终端( ubuntu终端和VSCode内的终端)都能正确识别.NET

>> dotnet --info
.NET SDK (reflecting any global.json):
 Version:   5.0.201
 Commit:    a09bd5c86c

Runtime Environment:
 OS Name:     ubuntu
 OS Version:  20.04
 OS Platform: Linux
 RID:         ubuntu.20.04-x64
 Base Path:   /snap/dotnet-sdk/116/sdk/5.0.201/

Host (useful for support):
  Version: 5.0.4
  Commit:  f27d337295

.NET SDKs installed:
  5.0.201 [/snap/dotnet-sdk/116/sdk]

.NET runtimes installed:
  Microsoft.AspNetCore.App 5.0.4 [/snap/dotnet-sdk/116/shared/Microsoft.AspNetCore.App]
  Microsoft.NETCore.App 5.0.4 [/snap/dotnet-sdk/116/shared/Microsoft.NETCore.App]

这里我漏掉了什么？

编辑

C#扩展也无法加载，并显示以下消息：

The reference assemblies for .NETFramework,Version=v4.7.1 were not found. To resolve this, install the Developer Pack (SDK/Targeting Pack) for this framework version or retarget your application. You can download .NET Framework Developer Packs at https://aka.ms/msbuild/developerpacks
[warn]: OmniSharp.MSBuild.ProjectManager
        Failed to load project file '/path/to/my/project/Assembly-CSharp.csproj'.
/path/to/my/project/Assembly-CSharp.csproj
/home/me/.vscode/extensions/ms-dotnettools.csharp-1.23.9/.omnisharp/1.37.6/omnisharp/.msbuild/Current/Bin/Microsoft.Common.CurrentVersion.targets(1180,5): Error: The reference assemblies for .NETFramework,Version=v4.7.1 were not found. To resolve this, install the Developer Pack (SDK/Targeting Pack) for this framework version or retarget your application. You can download .NET Framework Developer Packs at https://aka.ms/msbuild/developerpacks

Answer 1

我终于找到答案了！

在VSCode设置中，我配置了

"omnisharp.useGlobalMono": "always"

而不是

"omnisharp.useGlobalMono": "auto"

它起到了作用