vue-cli项目begin to generator skeleton screen后开始报错

### Description

`
new SkeletonPlugin({
pathname: path.resolve(__dirname, `../index.html`), // the path to store shell file
staticDir: path.resolve(__dirname, '../static'), // the same as the `output.path`
routes: ['/home/find'], // Which routes you want to generate skeleton screen
defer:20000
}),
`
偶尔会提示生成成功 但是骨架屏是空白的