SpringBoot启动报： expected single matching bean but found 2

Exception screenshot:

It can be roughly seen from the exception information: We originally wanted him to find GmsChannelService, but when it started, we found two, one is GmsChannelService and the other is GmsChannelServiceImpl:

Let's look at the controller layer again:
we use the @Autowired annotation here, and want to get the service through automatic boxing

Let's look at the serviceImpl layer again:

Solution:
Controller layer: add @Qualifier

serviceImp layer
@Service -->@Service(GmsChannelService)

Is the soup fragrant? ?