angular – ng run test return error – TypeError：_this.hand

发布时间：2020-12-17 17:34:14 所属栏目：安全来源：网络整理

导读：我用角度5.2.0创建了c3条形图.一切正常.但我只是想使用karma和jasmine和npm run test来运行测试.但是我遇到了以下问题.我希望它与rxjs函数有关.但我无法理解错误核心.请帮助任何人解决这个问题. TypeError: _this.handler.handle is not a function at Merge

我用角度5.2.0创建了c3条形图.一切正常.但我只是想使用karma和jasmine和npm run test来运行测试.但是我遇到了以下问题.我希望它与rxjs函数有关.但我无法理解错误核心.请帮助任何人解决这个问题.

TypeError: _this.handler.handle is not a function
    at MergeMapSubscriber.project (http://localhost:9876/_karma_webpack_/webpack:/C:/Workspace/datawens-master/node_modules/@angular/common/esm5/http.js:1466:80)
    at MergeMapSubscriber.webpackJsonp.../../../../rxjs/_esm5/operators/mergeMap.js.MergeMapSubscriber._tryNext (http://localhost:9876/_karma_webpack_/webpack:/C:/Workspace/datawens-master/node_modules/rxjs/_esm5/operators/mergeMap.js:128:1)
    at MergeMapSubscriber.webpackJsonp.../../../../rxjs/_esm5/operators/mergeMap.js.MergeMapSubscriber._next (http://localhost:9876/_karma_webpack_/webpack:/C:/Workspace/datawens-master/node_modules/rxjs/_esm5/operators/mergeMap.js:118:1)
    at MergeMapSubscriber.webpackJsonp.../../../../rxjs/_esm5/Subscriber.js.Subscriber.next (http://localhost:9876/_karma_webpack_/webpack:/C:/Workspace/datawens-master/node_modules/rxjs/_esm5/Subscriber.js:92:1)
    at ScalarObservable.webpackJsonp.../../../../rxjs/_esm5/observable/ScalarObservable.js.ScalarObservable._subscribe (http://localhost:9876/_karma_webpack_/webpack:/C:/Workspace/datawens-master/node_modules/rxjs/_esm5/observable/ScalarObservable.js:51:1)
    at ScalarObservable.webpackJsonp.../../../../rxjs/_esm5/Observable.js.Observable._trySubscribe (http://localhost:9876/_karma_webpack_/webpack:/C:/Workspace/datawens-master/node_modules/rxjs/_esm5/Observable.js:172:1)
    at ScalarObservable.webpackJsonp.../../../../rxjs/_esm5/Observable.js.Observable.subscribe (http://localhost:9876/_karma_webpack_/webpack:/C:/Workspace/datawens-master/node_modules/rxjs/_esm5/Observable.js:160:1)
    at MergeMapOperator.webpackJsonp.../../../../rxjs/_esm5/operators/mergeMap.js.MergeMapOperator.call (http://localhost:9876/_karma_webpack_/webpack:/C:/Workspace/datawens-master/node_modules/rxjs/_esm5/operators/mergeMap.js:92:1)
    at Observable.webpackJsonp.../../../../rxjs/_esm5/Observable.js.Observable.subscribe (http://localhost:9876/_karma_webpack_/webpack:/C:/Workspace/datawens-master/node_modules/rxjs/_esm5/Observable.js:157:1)
    at FilterOperator.webpackJsonp.../../../../rxjs/_esm5/operators/filter.js.FilterOperator.call (http://localhost:9876/_karma_webpack_/webpack:/C:/Workspace/datawens-master/node_modules/rxjs/_esm5/operators/filter.js:61:1)

解决方法

我能够通过在app.module.ts中进行以下更改来解决此问题.希望这可以帮助.

import { HttpClient } from '@angular/common/http';
import { HttpClientModule } from '@angular/common/http';
...
...

@NgModule({
  declarations: [
    MyApp,HomePage,CameraPage,],imports: [
    BrowserModule,//  HttpClient,HttpClientModule,

（编辑：李大同）

【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容!