vscode reports an error after entering debug mode

launch.json

{
        "version": "0.2.0",
        "configurations": [

        {
            "type": "chrome",
            "request": "attach",
            "name": "Attach to Chrome",
            "port": 3000,
            "webRoot": "${workspaceRoot}"
        },
            {
                "type": "node",
                "request": "launch",
                "name": "Launch Program",
                "program": "${workspaceRoot}\\index.js"
            }
        ]
    }

what is the reason for this problem?