Vscode下出現無法打開文件，不能跳轉到錯誤行的解決辦法

問題在於tasks.json文件
tasks.json原文件如下

{
    "version": "2.0.0",
    "command": "g++",
    "args": ["-g","${file}","-o","${fileBasenameNoExtension}.exe"],    // 編譯命令參數
    "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這一行，改為

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

不行的話可以用方法二，我用了方法二沒用，用方法一解決的

方法二：將

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

改為

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