Cannot read property 'split' of undefined TypeError: Cannot read property 'split' of undefined at success (<anonymous>:2799:432) at success (<anonymous>:2805:334) at e.function.i.(anonymous function) (<anonymous>:2:1878127) at h (<anonymous>:2:120991) at <anonymous>:2:121816 at A (<anonymous>:2:602617) at e.<anonymous> (<anonymous>:2:801621) at h (<anonymous>:2:120991) at <anonymous>:2:121816 at <anonymous>:2:763611
请具体描述问题出现的流程,并提供能复现问题的简单代码片段(https://developers.weixin.qq.com/miniprogram/dev/devtools/minicode.html),以及对应的报错相关信息。