Spring Boot multi module project with Gradle doesn't build

Question

I\'m working on a Spring Boot app with multiple modules and we\'re using Gradle to build it. Unfortunately I can\'t get the Gradle configuration right.

The project stru

Answer 1

You should exclude org.springframework.boot from all submodules (root build.gradle file, allProjects block), that are stands as dependencies for your core module, which will be build to fat-jar.

Include dependencyManagement configuration into all of your spring-boot managed submodules:

dependencyManagement {
    imports {
        mavenBom "org.springframework.boot:spring-boot-starter-parent:${springBootVersion}"
    }
}

The reason of your problem is the absence of submodules compiled jar files inside your core module fat-jar.