[英]Predefined type 'System.String' is not defined or imported in C#
我在 Mac 上使用 Do.net-cli 和 Visual Studio Code 編碼 C#。 這工作正常,直到幾天前,每次我打開 Visual Studio Code 時,它都會給我數百萬個關於“未定義或導入預定義類型‘System.String’”、“未定義或導入預定義類型‘System.Object’”的錯誤imported”,以及更多關於系統命名空間的錯誤。
為什么會發生這種情況,我該如何解決?
{
// See https://go.microsoft.com/fwlink/?LinkId=733558
// for the documentation about the tasks.json format
"version": "2.0.0",
"tasks": [
{
"label": "build",
"command": "dotnet",
"type": "shell",
"args": [
"build",
// Ask dotnet build to generate full paths for file names.
"/property:GenerateFullPaths=true",
// Do not generate summary otherwise it leads to duplicate errors in Problems panel
"/consoleloggerparameters:NoSummary"
],
"group": "build",
"presentation": {
"reveal": "silent"
},
"problemMatcher": "$msCompile"
}
]
}
{
// Use IntelliSense to learn about possible attributes.
// Hover to view descriptions of existing attributes.
// For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
"version": "0.2.0",
"configurations": [
{
"name": ".NET Core Launch (console)",
"type": "coreclr",
"request": "launch",
"WARNING01": "*********************************************************************************",
"WARNING02": "The C# extension was unable to automatically decode projects in the current",
"WARNING03": "workspace to create a runnable launch.json file. A template launch.json file has",
"WARNING04": "been created as a placeholder.",
"WARNING05": "",
"WARNING06": "If OmniSharp is currently unable to load your project, you can attempt to resolve",
"WARNING07": "this by restoring any missing project dependencies (example: run 'dotnet restore')",
"WARNING08": "and by fixing any reported errors from building the projects in your workspace.",
"WARNING09": "If this allows OmniSharp to now load your project then --",
"WARNING10": " * Delete this file",
"WARNING11": " * Open the Visual Studio Code command palette (View->Command Palette)",
"WARNING12": " * run the command: '.NET: Generate Assets for Build and Debug'.",
"WARNING13": "",
"WARNING14": "If your project requires a more complex launch configuration, you may wish to delete",
"WARNING15": "this configuration and pick a different template using the 'Add Configuration...'",
"WARNING16": "button at the bottom of this file.",
"WARNING17": "*********************************************************************************",
"preLaunchTask": "build",
"program": "${workspaceFolder}/bin/Debug/<insert-target-framework-here>/<insert-project-name-here>.dll",
"args": [],
"cwd": "${workspaceFolder}",
"console": "internalConsole",
"stopAtEntry": false
},
{
"name": ".NET Core Attach",
"type": "coreclr",
"request": "attach",
"processId": "${command:pickProcess}"
}
]
}
-------------------------------------------------------------------
You may only use the Microsoft .NET Core Debugger (vsdbg) with
Visual Studio Code, Visual Studio or Visual Studio for Mac software
to help you develop and test your applications.
-------------------------------------------------------------------
Loaded '/usr/local/share/dotnet/shared/Microsoft.NETCore.App/3.1.8/System.Private.CoreLib.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
Loaded '/Users/khaled/Projects/new/bin/Debug/netcoreapp3.1/new.dll'. Symbols loaded.
Loaded '/usr/local/share/dotnet/shared/Microsoft.NETCore.App/3.1.8/System.Runtime.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
Loaded '/usr/local/share/dotnet/shared/Microsoft.NETCore.App/3.1.8/System.Diagnostics.Process.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
Loaded '/usr/local/share/dotnet/shared/Microsoft.NETCore.App/3.1.8/System.ComponentModel.Primitives.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
Loaded '/usr/local/share/dotnet/shared/Microsoft.NETCore.App/3.1.8/System.Console.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
Loaded '/usr/local/share/dotnet/shared/Microsoft.NETCore.App/3.1.8/System.Runtime.Extensions.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
Loaded '/usr/local/share/dotnet/shared/Microsoft.NETCore.App/3.1.8/System.Threading.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
Loaded '/usr/local/share/dotnet/shared/Microsoft.NETCore.App/3.1.8/System.Text.Encoding.Extensions.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
Not Enough Args
The program '[82385] new.dll' has exited with code 0 (0x0).
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<OutputType>Exe</OutputType>
<TargetFramework>netcoreapp3.1</TargetFramework>
</PropertyGroup>
</Project>
Omnisharp 需要 Mono 版本 > 6.4.0。 將 VSCode 設置中的Use Global Mono
設置為always
。 如果這沒有幫助,請嘗試手動設置Mono Path
以指向單聲道的路徑。
您在 OmniSharp 日志中有任何錯誤嗎? (在OUTPUT
選項卡內)
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