Resolving "Nest can't resolve dependencies of the X"

From time to time you can see the error:

Nest can’t resolve dependencies of the X. Please make sure that the “Y” property is available in the current context.

In case of services:

• Ensure the service is exposed in the module
• Ensure the module exposing the service is included in the module
• In tests: ensure the service is provided in the createTestingModule function
• Check for circular dependencies; if you think there is one, use forwardRef in the place where the service is injected: @Inject(forwardRef(() => UserService)) private readonly userService: UserService

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