line:1,column:643530,TypeError: i is not a function. (In \'i(r)\', \'i\' is undefined) 从昨天起至目前（4月9日~4月10日早上），js分析里出现大量该报错日志，不到两日报错量已达1w+了，并且多次触发错误告警，目前该报错还在持续新增中。报错类型是：基础库错误。麻烦看下这个是什么情况，还望能尽快回复，谢谢！

line:1,column:643530,TypeError: i is not a function. (In \'i(r)\', \'i\' is undefined) Stack:r@https://lib/WAServiceMainContext.js:1:643530

s@https://lib/WAServiceMainContext.js:1:123462

callAndRemove@https://lib/WAServiceMainContext.js:1:118821

invokeCallbackHandler@https://lib/WAServiceMainContext.js:1:122358

@[native code]

@https://lib/WAServiceMainContext.js:1:121202

invoke@https://lib/WAServiceMainContext.js:1:121716

invoke@https://lib/WAServiceMainContext.js:1:123601

R$@https://lib/WAServiceMainContext.js:1:1006136

j$@https://lib/WAServiceMainContext.js:1:1008852

@https://lib/WAServiceMainContext.js:1:1009343

@https://lib/WAServiceMainContext.js:1:635590

emit@https://lib/WAServiceMainContext.js:1:119315

emit@[native code]

dispatch@https://lib/WAServiceMainContext.js:1:126441

cb@https://lib/WAServiceMainContext.js:1:126937

cb@[native code]

emit@https://lib/WAServiceMainContext.js:1:118934

subscribeHandler@https://lib/WAServiceMainContext.js:1:122438

global code@

r@https://lib/WAServiceMainContext.js:1:643530

s@https://lib/WAServiceMainContext.js:1:123462

callAndRemove@https://lib/WAServiceMainContext.js:1:118821

invokeCallbackHandler@https://lib/WAServiceMainContext.js:1:122358

@https://lib/WAServiceMainContext.js:1:121202

invoke@https://lib/WAServiceMainContext.js:1:121716

invoke@https://lib/WAServiceMainContext.js:1:123601

R$@https://lib/WAServiceMainContext.js:1:1006136

j$@https://lib/WAServiceMainContext.js:1:1008852

@https://lib/WAServiceMainContext.js:1:1009343

@https://lib/WAServiceMainContext.js:1:635590

emit@https://lib/WAServiceMainContext.js:1:119315

dispatch@https://lib/WAServiceMainContext.js:1:126441

cb@https://lib/WAServiceMainContext.js:1:126937

emit@https://lib/WAServiceMainContext.js:1:118934

subscribeHandler@https://lib/WAServiceMainContext.js:1:122438