7、 Wechat applet running error: error: illegal appid, invalid appid

Operation error reporting ：Error: AppID illegal ,invalid appid
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Wechat developer tool console reports an error ：TypeError: First argument must be a string, Buffer, ArrayBuffer, Array, or array-like object.

solve ： When we get someone else's source code or update requirements
First 【 Let the administrator add us as members of the applet project and authorize 】 WeChat official account platform ：https://mp.weixin.qq.com/
Solve the problem again ：【 Wechat applet configuration 】 Change to with background AppID coincident AppID

Corresponding to AppID It is required to fill in consistently Don't forget to look for other documents

Other supplements ：
Let's just say ha If possible, take the handle domain name and check it Provincial error reporting After all, not from 0 Development The above problems are generally caused by taking over the source code