angular / 11.2.14 / errors / ng2003.html /

NG2003: No suitable injection token for parameter


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 like 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.

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