Gradle subproject build dependency

java gradle dependencies multi-project subproject
Klaus picture Klaus · Sep 4, 2015 · Viewed 15.3k times · Source

I have a dependency problem and I do not know how to solve it.

I have a project A, B and C.

A needs B and C

B needs C

My directory structure looks like this:

A
|-settings.gradle
|-build.gradle
|-lib
   |- B
   |- C

settings.gradle content:

include 'lib/B'
include 'lib/C'

build.gradle content:

apply plugin: 'java'
dependencies {
  compile project(':lib/B'), 
          project(':lib/C') 
}

project(':lib/B'){
  dependencies {
    compile project(':lib/C')
  }
}

If I do NOT declare the project(':lib/B'){...} part, project B can not be build because of dependencies.

If I declare the project(':lib/B'){...} part, Gradle tells me : Could not find method compile() for arguments [project ':lib/C'] on org.gradle.api.internal.artifacts.dsl.pendencies.DefaultDependencyHandler_Decorated@221bad.

How am I able to solve it, or compile C before B?

PS: Data structure changes are not possible.

Answer

user3278460 picture user3278460 · Sep 4, 2015

Please, try to add 

subprojects {
    apply plugin: 'java'
}

to your main build.gradle

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