intellij incorrectly saying no beans of type found for autowired repository

I had this same issue when creating a Spring Boot application using their @SpringBootApplication annotation. This annotation represents @Configuration, @EnableAutoConfiguration and @ComponentScan according to the spring reference.

As expected, the new annotation worked properly and my application ran smoothly but, Intellij kept complaining about unfulfilled @Autowire dependencies. As soon as I changed back to using @Configuration, @EnableAutoConfiguration and @ComponentScan separately, the errors ceased. It seems Intellij 14.0.3 (and most likely, earlier versions too) is not yet configured to recognise the @SpringBootApplication annotation.

For now, if the errors disturb you that much, then revert back to those three separate annotations. Otherwise, ignore Intellij...your dependency resolution is correctly configured, since your test passes.

Always remember...

Man is always greater than machine.

Sometimes you are required to indicate where @ComponentScan should scan for components. You can do so by passing the packages as parameter of this annotation, e.g:

@ComponentScan(basePackages={"path.to.my.components","path.to.my.othercomponents"})

However, as already mentioned, @SpringBootApplication annotation replaces @ComponentScan, hence in such cases you must do the same:

@SpringBootApplication(scanBasePackages={"path.to.my.components","path.to.my.othercomponents"})

At least in my case, Intellij stopped complaining.

My version of IntelliJ IDEA Ultimate (2016.3.4 Build 163) seems to support this. The trick is that you need to have enabled the Spring Data plugin.

Add Spring annotation @Repository over the repository class.

I know it should work without this annotation. But if you add this, IntelliJ will not show error.

@Repository
public interface YourRepository ...
...

If you use Spring Data with extending Repository class it will be conflict packages. Then you must indicate packages directly.

import org.springframework.data.repository.Repository;
...

@org.springframework.stereotype.Repository
public interface YourRepository extends Repository<YourClass, Long> {
    ...
}

And next you can autowired your repository without errors.

@Autowired
YourRepository yourRepository;

It probably is not a good solution (I guess you are trying to register repository twice). But work for me and don't show errors.

Maybe in the new version of IntelliJ can be fixed: https://youtrack.jetbrains.com/issue/IDEA-137023