如何解决VS Code中的“ localhost拒绝连接”问题？

如何解决如何解决VS Code中的“ localhost拒绝连接”问题？

我正在使用VS Code开发VUE项目，并尝试使用“ Chrome（预览版）”，这是默认的配置文件：

{
    // 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": [
        {
            "type": "pwa-chrome","request": "launch","name": "Launch Chrome against localhost","url": "http://localhost:8080","webroot": "${workspaceFolder}"
        }
    ]
}

不确定是否需要更改这些内容？这类东西是新手，让我知道！