Mac下Visual Studio Code调试C++报错：需指定MIDebuggerPath

DevOps 小满

2026-6-19

Mac下VS Code调试C++报错：无法确定调试器路径的解决方法

在Mac（arm64架构）上使用VS Code调试C++，已配置tasks.json和launch.json，但点击调试按钮时出现以下错误：

Unable to start debugging. Launch options string provided by the project system is invalid. Unable to determine path to debugger. Please specify the "MIDebuggerPath" option

解决步骤

1. 确认LLDB调试器路径

打开终端，执行以下命令获取LLDB的实际安装路径：

which lldb

若通过Homebrew安装LLDB，路径通常为/opt/homebrew/bin/lldb
系统自带LLDB的路径一般为/usr/bin/lldb

2. 修改`launch.json`配置

在launch.json的调试配置项中添加MIDebuggerPath字段，填入上一步获取的LLDB路径。修改后的完整配置如下：

{
    "configurations": [
        {
            "name": "C/C++: g++ build and debug active file",
            "type": "cppdbg",
            "request": "launch",
            "program": "${fileDirname}/${fileBasenameNoExtension}",
            "args": [],
            "stopAtEntry": false,
            "cwd": "${fileDirname}",
            "environment": [],
            "externalConsole": false,
            "MIMode": "lldb",
            "targetArchitecture": "arm64",
            "preLaunchTask": "C/C++: g++ build active file",
            "MIDebuggerPath": "/opt/homebrew/bin/lldb" // 替换为你的lldb实际路径
        }
    ],
    "version": "2.0.0"
}