c# - 当我尝试启动 C# 代码时，收到消息 '' 找不到任务 'build'

Question

我是 C# 新手，正在使用pluralsight 进行学习

我完全按照教程进行操作，但遇到了教程没有的问题。

当您通过 .Net 编写 C# 代码时，我构建了简单的“Hello World”程序

在 Visual Studio Code 中，如果选择“开始调试”或“开始但不调试”，则会弹出以下错误

“找不到任务‘构建’”

然后我还是单击“调试”，然后出现以下错误

启动:程序目录\<在此处插入项目名称>.dll 不存在有一个打开 launch.json 的选项

令人困惑的是，.dll 文件确实存在......

此外，检查 launch.json，我有以下内容:

{
  // 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": "${workspaceFolder}/bin/Debug/<insert-target-framework-here>/<insert-project-name-here>.dll",
      "args": ["link"],
      "cwd": "${workspaceFolder}",
      "console": "internalConsole",
      "stopAtEntry": false
    },
    {
      "name": ".NET Core Attach",
      "type": "coreclr",
      "request": "attach",
      "processId": "${command:pickProcess}"
    }
  ]
}

Answer 1

简单的方法

在 VS Code 中，加载代码库后。调出command pallet并输入> .NET Generate Assets for Build and Debug然后按回车键。

这将强制 VS Code 重新创建 launch.json和task.json文件。

请注意 VS Code 窗口的左下角是否有类似如下的 Toast 消息:

并确保单击 Yes

复杂的方式

您需要更改 task.json 中的行当前读取的文件:

"program": "${workspaceFolder}/bin/Debug/<insert-target-framework-here>/<insert-project-name-here>.dll",

替换<insert-target-framework-here>在您的 csproj 中使用目标框架名称，它可能类似于以下内容:

<TargetFramework>netcoreapp2.1</TargetFramework>

您还需要替换 <insert-project-name-here>.dll带有您生成的 DLL 名称的字符串。