微信小程序报错：Component is not found in path components/comp/comp.js

完整错误

jsEnginScriptError:
Component is not found in path "components/comp/comp.js" (using by pages/index/index); onAppRoute
Error: Component is not found in path "components/comp/comp.js" (using by pages/index/index)in e(...)...

错误代码（json）

{"backgroundTextStyle": "light","navigationBarBackgroundColor": "#fff","navigationBarTitleText": "WeApp","navigationBarTextStyle": "black","usingComponents": {"MyComp": "../../components/comp/comp.js"}
}

解决

去掉.js, 改为../../components/comp/comp：

{"backgroundTextStyle": "light","navigationBarBackgroundColor": "#fff","navigationBarTitleText": "WeApp","navigationBarTextStyle": "black","usingComponents": {"MyComp": "../../components/comp/comp"
}