小白一个  ，请各位大神告知下这个问题出现的原因和解决办法？

VM315:1 thirdScriptError

Cannot read property ‘request’ of undefined;at api login success callback function

TypeError: Cannot read property ‘request’ of undefined

    at success (http://127.0.0.1:47306/appservice/hc_step/pages/index/index.js:681:102))

    at Function.o.(anonymous function) (WAService.js:1:1027087)

    at Object.success (WAService.js:1:102572)

    at r (WAService.js:1:390253)

    at WAService.js:1:390435

    at v (WAService.js:1:390439)

    at WAService.js:1:391847

    at t.

(http://127.0.0.1:47306/appservice/appservice?t=1564555459267:9637:10828)

    at WAService.js:1:102572

    at WAService.js:1:90451