引入js报错

写了一个公共底部，引入js的时候报错：

VM22308:1 Please do not register multiple Pages in pages/index/index.js

VM22308:1 thirdScriptError 

 sdk uncaught third Error 

 APP-SERVICE-Engine:Please do not register multiple Pages in pages/index/index.js 

 Error: APP-SERVICE-Engine:Please do not register multiple Pages in pages/index/index.js