title: NullInjectorError: No provider for Compiler
body: <p>Self-answered question for this error:</p>
  
  <p>injector.ts:128 Uncaught Error: StaticInjectorError[Compiler]: 
    StaticInjectorError[Compiler]: 
      NullInjectorError: No provider for Compiler!
      at _NullInjector.get (injector.ts:23) [angular]</p>