Spring Boot and @ComponentScan between two jars

Question

I have 2 projects. One is a DAL project that does CRUD operations on a neo4j DB using spring neo4j APIs . This project is packaged as a jar and included in project #2. Project #2 Is a Spring restful services project that uses spring boot to package and create an executable jar that runes on an embedded tomcat server.

When trying to run my executable jar that Spring boot has created for me I keep getting this exception. expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}

Based off of my reading if I am using @ComponentScan I can give the annotation directories to look in. So I give it the base dir for my services project. And I give it the base dir for my included DAL.jar but still no luck here is what the annotation looks like.

Extracted from comments:

Component scan declaration

@ComponentScan({"com.foo.dal.*","com.foo.notification.*"})

Stacktrace:

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'pushCommandsController': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: com.teradata.dal.example.PushRepository com.teradata.notification.rest.controller.PushCommandsController.repository; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.teradata.dal.example.PushRepository] found for dependency:
expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}

UPDATE:

based off of @chrylis answer: Made change to @ComponenetScan

@ComponentScan({"com.teradata.notification","com.teradata.dal"})

running in to:

java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:53)
at java.lang.Thread.run(Thread.java:744)
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'org.springframework.boot.autoconfigure.MessageSourceAutoConfiguration' is defined

MORE DETAIL ON THE DAL PROJECT AND THE SERVICE PROJECT:

DAL PROJECT:

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Services Project:

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Answer 1

The argument to @ComponentScan is a package name, and those strings aren't valid packages. Drop the .* from them; Spring scans subpackages automatically.

Answer 2

Had this same issue for a short while, then @EntityScan did the trick for me, just as adviced here - Spring Boot w/ JPA: move @Entity to different package.

Hope that helps