前几次运行时是对的，然后突然就显示这样的错误了，想问下老师这是怎么回事TAT

警告: Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name ‘productCategoryServiceImpl’: Unsatisfied dependency expressed through method ‘getProductCategoryList’ parameter 0; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type ‘long’ available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {}
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type ‘long’ available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {}