vue引入导航守卫报错error: 'to' is defined but never used (no-unused-vars)

"rules": {
    "generator-star-spacing": "off",
    "no-tabs":"off",
    "no-unused-vars":"off",
    "no-console":"off",
    "no-irregular-whitespace":"off",
    "no-debugger": "off"
},

 原因是安装了