Only apply dependencies.gradle to root project The ExtraPropertiesExtension of the root project is available on subprojects directly as well 
diff --git a/build.gradle b/build.gradle index 063f279..865f0b3 100644 --- a/build.gradle +++ b/build.gradle 
@@ -12,8 +12,9 @@  }  }   +apply from: rootProject.file('dependencies.gradle') +  allprojects { - project -> project.apply from: rootProject.file('dependencies.gradle')  repositories {  jcenter()  }