c - 无法打开printf，无法读取文件

Question

我正在尝试在我的 ubuntu 机器中调试 vs 代码中的“.c”文件，但我遇到了这个问题。

 Unable to open 'printf.c': Unable to read file (Error: File not found (/build/glibc-OTsEL5/glibc-2.27/stdio-common/printf.c)).

在我说“创建文件”之后它给出了这个错误

Unable to write file (NoPermissions (FileSystemError): Error: EACCES: permission denied, mkdir '/build')

我正在尝试调试一个简单的“hello world”代码。在任何函数（如 malloc 等）中也给出了相同的错误大纲。

可能是什么问题和解决方案？

启动.json

{
    // 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": "gcc build and debug active file",
            "type": "cppdbg",
            "request": "launch",
            "program": "${fileDirname}/${fileBasenameNoExtension}",
            "args": [],
            "stopAtEntry": false,
            "cwd": "${workspaceFolder}",
            "environment": [],
            "externalConsole": true,
            "MIMode": "gdb",
            "setupCommands": [
                {
                    "description": "Enable pretty-printing for gdb",
                    "text": "-enable-pretty-printing",
                    "ignoreFailures": true
                }
            ],
            "preLaunchTask": "gcc build active file",
            "miDebuggerPath": "/usr/bin/gdb"
        }
    ]
}

任务.json

{
    // See https://go.microsoft.com/fwlink/?LinkId=733558 
    // for the documentation about the tasks.json format
    "version": "2.0.0",
    "tasks": [
        {
            "type": "shell",
            "label": "gcc build active file",
            "command": "/usr/bin/gcc",
            "args": [
                "-g",
                "${file}",
                "-o",
                "${fileDirname}/${fileBasenameNoExtension}"
            ],
            "options": {
                "cwd": "/usr/bin"
            },
            "problemMatcher": [
                "$gcc"
            ],
            "group": "build"
        }
    ]
}