测试版本一直是可以的，发布上线后一直提示如下错误，这应该怎么解决，有大佬知道吗？

vm is not defined

ReferenceError: vm is not defined

at fail (https://network/network.js:50:16)

at Function.forEach.u.<computed> (https://lib/WASubContext.js:2:2162788)

at https://lib/WASubContext.js:2:105624

at p (https://lib/WASubContext.js:2:479054)

at Function.<anonymous> (https://lib/WASubContext.js:2:963635)

at https://lib/WASubContext.js:2:105624

at https://lib/WASubContext.js:2:879688