Cannot read property 'injector' of null in TestBed.createComponent when running tests in angular2 and jasmine

Question

When running a simple test with karma and browserify my test crashes inside TestBed.createComponent() function. Here is the beforeEach which is crashing: ``` import { ComponentFixture, TestBed } from '@angular/core/testing'; import { By } from '@angular/platform-browser'; import { DebugElement } from '@angular/core'; import { AboutPage } from './about' beforeEach(() => { // refine the test module by declaring the test component TestBed.configureTestingModule({ declarations: [ AboutPage ], }); // create component and test fixture fixture = TestBed.createComponent(AboutPage); // get test component from the fixture comp = fixture.componentInstance; }); ``` And the error received: ``` Chrome 53.0.2785 (Mac OS X 10.11.6) About component should display original title FAILED TypeError: Cannot read property 'injector' of null at TestBed._createCompilerAndModule (/var/folders/by/05whlcq9247dyx85bd0l183w0000gn/T/node_modules/@angular/core/bundles/core-testing.umd.js:834:0 <- /var/folders/by/05w…

Accepted Answer

I guess you forgot to init platform:

```
import { 
  BrowserDynamicTestingModule, 
  platformBrowserDynamicTesting 
} 
from '@angular/platform-browser-dynamic/testing';

TestBed.initTestEnvironment(BrowserDynamicTestingModule, platformBrowserDynamicTesting());
```

Cannot read property 'injector' of null in TestBed.createComponent when running tests in angular2 and jasmine

Solution

Problem