There is no injection token for a constructor parameter at compile time. InjectionTokens are tokens that can be used in a Dependency Injection Provider.
Debugging the error
Look at the parameter that throws the error, and all uses of the class.
This error is commonly thrown when a constructor defines parameters with primitive types such as string
, number
, boolean
, and Object
.
Use the @Injectable
method or @Inject
decorator from @angular/core
to ensure that the type you are injecting is reified (has a runtime representation). Make sure to add a provider to this decorator so that you do not throw NG0201: No Provider Found.