Visual studio code 为什么我的vscode 1.38.1显示';未定义或导入预定义类型';在Ubuntu 19上打开.NET Core 3.0裸控制台应用程序时
我安装了.NET core 3.0 SDK,并创建了一个带有Visual studio code 为什么我的vscode 1.38.1显示';未定义或导入预定义类型';在Ubuntu 19上打开.NET Core 3.0裸控制台应用程序时,visual-studio-code,.net-core-3.0,ubuntu-19.04,Visual Studio Code,.net Core 3.0,Ubuntu 19.04,我安装了.NET core 3.0 SDK,并创建了一个带有dotnet新控制台的控制台应用程序。这是项目文件 <Project Sdk="Microsoft.NET.Sdk"> <PropertyGroup> <OutputType>Exe</OutputType> <TargetFramework>netcoreapp3.0</TargetFramework> </PropertyGroup
dotnet新控制台的控制台应用程序。这是项目文件
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<OutputType>Exe</OutputType>
<TargetFramework>netcoreapp3.0</TargetFramework>
</PropertyGroup>
</Project>
我试过:
dotnet清理
和dotnet恢复
/dotnet构建
- 手动删除
bin
,obj
,.vscode
并恢复
- 从vscode本身恢复
- 安装了最新版本的C#扩展和VS代码
请注意,.netcoreapp2.2
应用程序可以正常打开
以下是一些环境信息:
$ code --version
1.38.1
b37e54c98e1a74ba89e03073e5a3761284e3ffb0
x64
更新:
即使在删除mono-devel及其依赖项之后,这个问题似乎在VS代码1.39.0中也得到了解决
原件:
显然,这是一个C#扩展问题。正如问题评论所建议的,安装Mono 6.0.0(在linux或Mac上)修复了该问题。我可以证实这一点
从安装Mono 6
对于Ubuntu 18.04及更高版本,请运行以下命令:
sudo apt install gnupg ca-certificates
sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 3FA7E0328081BFF6A14DA29AA6A19B38D3D831EF
echo "deb https://download.mono-project.com/repo/ubuntu stable-bionic main" | sudo tee /etc/apt/sources.list.d/mono-official-stable.list
sudo apt update
我已经删除了所有其他dotnet SDK,只剩下3.0.100可用。
这就成功了
Linux Mint,最新的VSCode。我的同事在windows 10上遇到了相同的问题,使用了相同的.NET Core 3、VSCode和扩展版本。这里的问题相同,版本相同,任何.netcore 3项目。。。构建和运行良好,但在编辑器不理解任何内容时无法使用。@SteveMcNiven Scott我刚刚看到很快就要发布了,它改进了对.NET Core 3的支持。这可能会解决它。
$ dotnet --info
.NET Core SDK (reflecting any global.json):
Version: 3.0.100
Commit: 04339c3a26
Runtime Environment:
OS Name: ubuntu
OS Version: 19.04
OS Platform: Linux
RID: ubuntu.19.04-x64
Base Path: /usr/share/dotnet/sdk/3.0.100/
Host (useful for support):
Version: 3.0.0
Commit: 95a0a61858
.NET Core SDKs installed:
2.2.402 [/usr/share/dotnet/sdk]
3.0.100 [/usr/share/dotnet/sdk]
.NET Core runtimes installed:
Microsoft.AspNetCore.All 2.2.7 [/usr/share/dotnet/shared/Microsoft.AspNetCore.All]
Microsoft.AspNetCore.App 2.2.7 [/usr/share/dotnet/shared/Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 3.0.0 [/usr/share/dotnet/shared/Microsoft.AspNetCore.App]
Microsoft.NETCore.App 2.2.7 [/usr/share/dotnet/shared/Microsoft.NETCore.App]
Microsoft.NETCore.App 3.0.0 [/usr/share/dotnet/shared/Microsoft.NETCore.App]
To install additional .NET Core runtimes or SDKs:
https://aka.ms/dotnet-download
# lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 19.04
Release: 19.04
Codename: disco
sudo apt install gnupg ca-certificates
sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 3FA7E0328081BFF6A14DA29AA6A19B38D3D831EF
echo "deb https://download.mono-project.com/repo/ubuntu stable-bionic main" | sudo tee /etc/apt/sources.list.d/mono-official-stable.list
sudo apt update
sudo apt install mono-devel