VScode远程调试问题 launch: program ‘ ‘ does not exist 解决

经过远程连接之后，写下main.cpp进行调试

//main.cpp
#include
using namespace std;
int main()
{

    cout<<"hello world"< 
//launch.json
{
  "version": "0.2.0",
  "configurations": [
    {
      "name": "C/C++ Runner: Debug Session",
      "type": "cppdbg",
      "request": "launch",
      "args": [],
      "stopAtEntry": false,
      "cwd": "${workspaceFolder}", // gdb程序的工作目录
      "environment": [],
      "program": "${workspaceFolder}/main",,
      "internalConsoleOptions": "openOnSessionStart",
      "MIMode": "gdb",
      "miDebuggerPath": "/usr/bin/gdb",
      "externalConsole": false,
      "setupCommands": [
        {
          "description": "Enable pretty-printing for gdb",
          "text": "-enable-pretty-printing",
          "ignoreFailures": true
        }
      ]
    }
  ]
}
 
//tasks.json
{
	"version": "2.0.0",
	"tasks": [
		{
			"type": "shell",
			"label": "gnss-sdr-lizw0.0.01",
			"command": "g++",
			"args": [
				"-g",
				"main.cpp",
				"-o",
				"main"
			]
			//"group": "build"
		}
		
	]
}
 
 
如果按F5 出现 ”launch: program ’ ’ does not exist “这个问题 ，首先看launch.json 里面的 “cwd” ， “program” 和 tasks.json里的”args“能否对上，这在其他博主的blog里已经讲了，，那么如果还没解决就需要在launch.json 里加入
 “preLaunchTask”: “gnss-sdr-lizw0.0.01” // 该项的值对应任务文件中的label的值，表示在执行debug前先执行编译任务
 "gnss-sdr-lizw0.0.01"和tasks.json里的"label"名字相同。
 之后的launch.json文件是这样的：
 
//launch.json
{
  "version": "0.2.0",
  "configurations": [
    {
      "name": "C/C++ Runner: Debug Session",
      "type": "cppdbg",
      "request": "launch",
      "args": [],
      "stopAtEntry": false,
      "cwd": "${workspaceFolder}", // gdb程序的工作目录
      "environment": [],
      "program": "${workspaceFolder}/main",,
      "internalConsoleOptions": "openOnSessionStart",
      "MIMode": "gdb",
      "miDebuggerPath": "/usr/bin/gdb",
      "externalConsole": false,
      "setupCommands": [
        {
          "description": "Enable pretty-printing for gdb",
          "text": "-enable-pretty-printing",
          "ignoreFailures": true
        }
      ],
      "preLaunchTask": "gnss-sdr-lizw0.0.01" // 该项的值对应任务文件中的label的值，表示在执行debug前先执行编译任务
    }
  ]
}
 
原理很简单，先编译成可执行文件，才能用gdb调试，这一行就是告诉编译器，先编译再调试。
 好了，加上这一行之后非常顺利的解决了！！可以调试了！！
 
另外还有个问题一直没解决，我把launch.json里的"externalConsole": false,改为"externalConsole": true,之后为什么还是不能显示外部终端那个黑框呢，难道是远程连接的模式就是不能显示嘛？目前只能用字符终端看啦，不过也好凑合是能调试了！！
 
参考： vscode远程调试