Error with nativestorage ionic 5

Good friends I am new to the community, however I hope you can help me out. I am doing a small project in ionic 5 and I am trying to use the native storage with capacitor and although I am following the instructions of the official site I present the following errors. (Error: Unexpected value ‘NativeStorage’ imported by the module ‘AppModule’) and if I don’t load the service in the appmodule it gives me the following error (Uncaught (in promise): NullInjectorError: StaticInjectorError (AppModule) [HomePage -> NativeStorage]) . What should I do to fix the error