Bug report（问题描述）

Mac OSX 上，可以 run dev，但是执行 build:prod 时报错

ERROR  Failed to compile with 1 errors                                                                                                                                                             下午11:02:51

 error  in ./src/router/index.js

Module parse failed: Unexpected token (48:13)
You may need an appropriate loader to handle this file type.
|     path: '/redirect/:path(.*)',
|     component: function component() {
>       return import('@/views/redirect/index');
|     }
|   }]

 @ ./src/main.js 21:0-30 59:10-16
 @ multi ./src/main.js

 ERROR  Build failed with errors.

Steps to reproduce（问题复现步骤）

Screenshot or Gif（截图或动态图）

Link to minimal reproduction（最小可在线还原demo）

Other relevant information（格外信息）

• Your OS: MacOS Catalina 10.15.5
• Node.js version: v12.5.0
• vue-element-admin version: 4.4.0