"NullInjectorError: No provider for HttpClient! ng test" Code Answer To fix NullInjectorError: No provider for HttpClient! Save the above changes and the unit test cases should run fine without any dependency errors. NullInjectorError: No provider for HttpClient , throws . Connect and share knowledge within a single location that is structured and easy to search. NullInjectorError: No provider for HttpClient! karma jasmine NullInjectorError: No provider for HttpClient! Library is a clone of GitHub repository angular-library-starter-kit. Import HttpClientModule from @angular/common/http. test case Uncaught Error: No provider for HttpClient! Still Have Questions? karma jasmine - Angular 6 - NullInjectorError: No provider for ... nullinjectorerror: no provider for angular test [ ] Regression (a behavior that used to work and stopped working in a new release) [x] Bug report [ ] Feature request [ ] Documentation issue or request [ ] Support request => Please do not submit support request here. In addition, the solution of the errors depends on the error, so it is not only one. NullInjectorError: No provider for HttpClient - test component depending on service, which in turn depends on service using HttpClient The reason for "NullInjectorError: No provider for HttpClient!" Step 1: $ npm cache clean --force Step 2: Delete node_modules by $ rm -rf node_modules package-lock.json folder or delete it manually by going into . No provider for MessageService! - Prime Community Forum NullInjectorError: No provider for MatDialogRef. Please import the HttpClientTestingModule and the mocking . 3. However, when I run ng test for my unit tests, and when those tests use the service, I am getting the error: Error: StaticInjectorError(DynamicTestModule)[HttpClient]: StaticInjectorError(Platform: core)[HttpClient]: NullInjectorError: No provider for HttpClient! after this i am getting "no spec found" 229 People Used More Info ›› Jay Dec 7, 2021 While doing Angular unit testing I got the following error: . angular test service No provider for HttpClient! NullInjectorError: No provider for HttpClient! Please be sure to answer the question.Provide details and share your research!