VSCode悬停调试std::vector变量时出现summary string parsing error错误

以下是按优先级排序的验证解决方案：

• 匹配Clang-14对应的LLDB版本
  Ubuntu 18.04默认LLDB版本偏低，与Clang-14不兼容会导致STL容器解析失败。先安装配套调试器：

  sudo apt update && sudo apt install lldb-14
  

  再在VSCode的.vscode/launch.json中指定调试器路径：

  {
      "version": "0.2.0",
      "configurations": [
          {
              "name": "clang++ - Build and debug active file",
              "type": "cppdbg",
              "request": "launch",
              "program": "${fileDirname}/${fileBasenameNoExtension}",
              "args": [],
              "stopAtEntry": false,
              "cwd": "${fileDirname}",
              "environment": [],
              "externalConsole": false,
              "MIMode": "lldb",
              "miDebuggerPath": "/usr/bin/lldb-mi-14",
              "setupCommands": [
                  {
                      "description": "Enable pretty-printing",
                      "text": "-enable-pretty-printing",
                      "ignoreFailures": true
                  }
              ],
              "preLaunchTask": "C/C++: clang++ build active file"
          }
      ]
  }
  

• 修正编译选项生成有效调试信息
  打开.vscode/tasks.json，确保编译命令包含-g（生成调试符号）、禁用优化（无-O系列参数），并匹配代码使用的C++标准：

  {
      "tasks": [
          {
              "type": "cppbuild",
              "label": "C/C++: clang++ build active file",
              "command": "/usr/bin/clang++",
              "args": [
                  "-g",
                  "-std=c++17",
                  "-o",
                  "${fileDirname}/${fileBasenameNoExtension}",
                  "${file}"
              ],
              "options": {
                  "cwd": "${fileDirname}"
              },
              "problemMatcher": ["$gcc"],
              "group": {
                  "kind": "build",
                  "isDefault": true
              },
              "detail": "Task generated by Debugger."
          }
      ],
      "version": "2.0.0"
  }
  

• 安装libstdc++调试符号包
  Ubuntu 18.04默认libstdc++缺少完整调试符号，导致调试器无法解析STL容器：

  sudo apt install libstdc++6-dbg
  

• 禁用调试器自动摘要解析
  若以上方法无效，关闭VSCode调试器对STL容器的自动格式化，直接显示原始值：
  在launch.json的setupCommands中添加：

  {
      "description": "Disable std container pretty-printing",
      "text": "settings set target.max-children-count 100",
      "ignoreFailures": true
  }
  

  或直接添加配置项：

  "showDisplayString": false
  

内容的提问来源于stack exchange，提问作者Xudong