使用VS Code Run Task编译运行C程序时遇致命错误求助

问题描述 #

未使用Code Runner扩展，尝试通过VS Code的Run Task功能编译并运行C程序。单独编译后手动运行正常，但将编译与运行合并为同一任务时，出现以下错误：

cc1.exe: fatal error: world\hello_world.c: No such file or directory

原tasks.json代码如下：

{
 "version": "2.0.0",
 "tasks": [
     {
         "type": "cppbuild",
         "label": "C/C++: gcc.exe build active file",
         "command": "C:\\msys64\\mingw64\\bin\\gcc.exe",
         "args": [
             "-fdiagnostics-color=always",
             "-g",
             "${file}",
             "-o",
             "${fileDirname}\\${fileBasenameNoExtension}.exe"
         ],
         "options": {
             "cwd": "${fileDirname}"
         },
         "problemMatcher": [
             "$gcc"
         ],
         "group": {
             "kind": "build",
             "isDefault": true
         },
         "detail": "compiler: C:\\msys64\\mingw64\\bin\\gcc.exe"
     },
     {
         "type": "shell",
         "label": "Run C Program",
         "command": "C:\\msys64\\mingw64\\bin\\gcc.exe -fdiagnostics-color=always -g ${file} ${fileDirname}\\${fileBasenameNoExtension}.exe s-and${fileDirname}\\${fileBasenameNoExtension}.exe",
         
         "options": {
             "cwd": "${fileDirname}"
         },
         "problemMatcher": [
             "$gcc"
         ],
     
         "detail": "compiler: C:\\msys64\\mingw64\\bin\\gcc.exe"
     }
 ]
}

错误原因 #

你写的"Run C Program"任务的command完全错误：把编译命令和运行命令混在一起，还出现了无意义的s-and字符串。gcc是编译器，只能用来编译源码生成可执行文件，不能用它来运行exe，这种错误的命令格式导致路径解析出错。

解决方案 #

提供两种可行的修正方式：

方式1：用Shell命令串联编译和运行 #

直接修改任务的command，用&&连接编译命令和运行命令（只有编译成功才会执行运行步骤）：

{
 "version": "2.0.0",
 "tasks": [
     {
         "type": "cppbuild",
         "label": "C/C++: gcc.exe build active file",
         "command": "C:\\msys64\\mingw64\\bin\\gcc.exe",
         "args": [
             "-fdiagnostics-color=always",
             "-g",
             "${file}",
             "-o",
             "${fileDirname}\\${fileBasenameNoExtension}.exe"
         ],
         "options": {
             "cwd": "${fileDirname}"
         },
         "problemMatcher": [
             "$gcc"
         ],
         "group": {
             "kind": "build",
             "isDefault": true
         },
         "detail": "compiler: C:\\msys64\\mingw64\\bin\\gcc.exe"
     },
     {
         "type": "shell",
         "label": "Build and Run C Program",
         "command": "C:\\msys64\\mingw64\\bin\\gcc.exe -fdiagnostics-color=always -g ${file} -o ${fileDirname}\\${fileBasenameNoExtension}.exe && ${fileDirname}\\${fileBasenameNoExtension}.exe",
         "options": {
             "cwd": "${fileDirname}"
         },
         "problemMatcher": []
     }
 ]
}

方式2：利用任务依赖（更规范） #

保留原有的独立编译任务，新建一个运行任务，通过dependsOn指定先执行编译任务，再运行生成的可执行文件：

{
 "version": "2.0.0",
 "tasks": [
     {
         "type": "cppbuild",
         "label": "C/C++: gcc.exe build active file",
         "command": "C:\\msys64\\mingw64\\bin\\gcc.exe",
         "args": [
             "-fdiagnostics-color=always",
             "-g",
             "${file}",
             "-o",
             "${fileDirname}\\${fileBasenameNoExtension}.exe"
         ],
         "options": {
             "cwd": "${fileDirname}"
         },
         "problemMatcher": [
             "$gcc"
         ],
         "group": {
             "kind": "build",
             "isDefault": true
         },
         "detail": "compiler: C:\\msys64\\mingw64\\bin\\gcc.exe"
     },
     {
         "type": "shell",
         "label": "Build and Run C Program",
         "command": "${fileDirname}\\${fileBasenameNoExtension}.exe",
         "options": {
             "cwd": "${fileDirname}"
         },
         "problemMatcher": [],
         "dependsOn": "C/C++: gcc.exe build active file",
         "detail": "先编译再运行C程序"
     }
 ]
}

说明 #

• 方式1适合快速实现，一步完成编译运行；
• 方式2更符合VS Code任务的设计逻辑，编译和运行职责分离，也方便单独调用编译任务。

内容的提问来源于stack exchange，提问作者Nishu Patel