Vscode下出现无法打开文件，不能跳转到错误行的解决办法

问题在于tasks.json文件
tasks.json原文件如下

{
    "version": "2.0.0",
    "command": "g++",
    "args": ["-g","${file}","-o","${fileBasenameNoExtension}.exe"],    // 编译命令参数
    "problemMatcher": {
        "owner": "cpp",
        "fileLocation": ["relative", "${workspaceRoot}"],
        "pattern": {
            "regexp": "^(.*):(\\d+):(\\d+):\\s+(warning|error):\\s+(.*)$",
            "file": 1,
            "line": 2,
            "column": 3,
            "severity": 4,
            "message": 5

        }
    }

}

方法一：
修改fileLocation这一行，改为

"fileLocation": ["relative", "\\"],

不行的话可以用方法二，我用了方法二没用，用方法一解决的

方法二：将

"pattern": {
            "regexp": "^(.*):(\\d+):(\\d+):\\s+(warning|error):\\s+(.*)$",
            "file": 1,
            "line": 2,
            "column": 3,
            "severity": 4,
            "message": 5
        }

改为

"pattern": {
            "regexp": "^(.*)\\\\(.*):(\\d+):(\\d+):\\s+(warning|error):\\s+(.*)$",
            "file": 2,
            "line": 3,
            "column": 4,
            "severity": 5,
            "message": 6
        }