# The exception behind the report, and the order in which the container started creating beans


--- exception classes, outermost first ---
UnsatisfiedDependencyException -> UnsatisfiedDependencyException -> UnsatisfiedDependencyException -> BeanCurrentlyInCreationException

--- root cause ---
org.springframework.beans.factory.BeanCurrentlyInCreationException
Error creating bean with name 'notificationService': Requested bean is currently in creation: Is there an unresolvable circular reference or an asynchronous initialization dependency?

--- creation order (one line per bean the container began to create) ---
start creating notificationService
start creating orderService
start creating paymentService