我在Angular 10应用程序中对因果报应和茉莉花(因果报应4.4.1、茉莉花核心3.6.0和因果报茉莉花4.0.1(的一些测试中出错。我运行测试，输出是下一个：
MyModalComponent
✗ Should create component
Unhandled promise rejection: Error: Could not load "util".
Error: Could not load "util".
at HTMLScriptElement.__zone_symbol__ON_PROPERTYerror (src/tests/mocks/gog-mock.js:70:236)
at HTMLScriptElement.wrapFn (http://localhost:9876/_karma_webpack_/node_modules/zone.js/dist/zone-evergreen.js:763:1)
at ZoneDelegate.invokeTask (http://localhost:9876/_karma_webpack_/node_modules/zone.js/dist/zone-evergreen.js:406:1)
at Zone.runTask (http://localhost:9876/_karma_webpack_/node_modules/zone.js/dist/zone-evergreen.js:178:1)
at ZoneTask.invokeTask [as invoke] (http://localhost:9876/_karma_webpack_/node_modules/zone.js/dist/zone-evergreen.js:487:1)
at invokeTask (http://localhost:9876/_karma_webpack_/node_modules/zone.js/dist/zone-evergreen.js:1600:1)
at HTMLScriptElement.globalZoneAwareCallback (http://localhost:9876/_karma_webpack_/node_modules/zone.js/dist/zone-evergreen.js:1626:1)
24 04 2021 19:41:34.954:ERROR [karma-server]: UncaughtException
你知道吗？
我通过从项目根目录中删除dist和coverage文件夹并重新运行测试(即：ng test(来解决此问题。