我如何将一个项目与另一个项目中的子项目一起用作带有gradle的子项目（子模块）？

有一些gradle - android项目A.它取决于几个gradle子项目，每个项目位于自己的git存储库中，并通过git sub模块连接到我们的项目（我可以在我的owr存储库中查看它作为sub我项目的目录 . ）

项目hierarhy是：

└─ ProjectRootDir                                  --- projectA
             ├─ gradle
             ├─ mainProject
             │   └─ subprojectA                    --- submoduleA
             │        ├─ libs
             │        ├─ src
             │        ├─ settings.gradle
             │        └─ build.gradle
             ├─ relatedProjects                   --- folder for submodules
             │  ├─ subprojectA                    --- submoduleA
             │  │  ├─ library
             │  │  ├─ gradle
             │  │  ├─ libs
             │  │  └─ relatedProjects             --- related projects for submoduleA
             │  │     ├─ subprojectAA             --- first submodule of submoduleA
             │  │     │  ├─ Test
             │  │     │  ├─ libs
             │  │     │  ├─ src
             │  │     │  ├─ settings.gradle
             │  │     │  └─ build.gradle
             │  │     └─ subprojectAB             --- first submodule of submoduleA
             │  │        ├─ libs
             │  │        ├─ src
             │  │        ├─ tests
             │  │        ├─ settings.gradle
             │  │        └─ build.gradle
             │  └─ subprojectB                    --- submodule of submoduleB
             │     ├─ demo
             │     ├─ gradle
             │     ├─ library
             │     ├─ settings.gradle
             │     └─ build.gradle
             ├─ settings.gradle
             └─ build.gradle

mainProject build.gradle

apply plugin: 'android'

repositories {
    mavenLocal()
    mavenCentral()
}

dependencies {
    compile project(':relatedProjects:subprojectB:library')
    compile project(':relatedProjects:subprojectA:library')
}

rootProject settings.gradle

include ':mainProject'
include ':relatedProjects:subprojectB:library'
include ':relatedProjects:subprojectA'

rootProject build.gradle

buildscript {
     repositories {
         mavenCentral()
     }
     dependencies {
         classpath 'com.android.tools.build:gradle:0.+'
     }
 }

subprojectA settings.gradle

include ':library'
include ':relatedProjects:subprojectAA'
include ':relatedProjects:subprojectAB'

subprojectA build.gradle

apply plugin: 'android-library'

repositories {
    mavenCentral()
    flatDir {
        name 'localRepository'
        dirs 'src/main/libs'
    }
}

android {
    compileSdkVersion 19
    buildToolsVersion "19.0.0"

    defaultConfig {
        minSdkVersion 9
        targetSdkVersion 19
    }
    sourceSets {
        instrumentTest {
            assets.srcDirs = ["src/tests/assets"]
            res.srcDirs = ["src/tests/res"]
            resources.srcDirs = ["src/tests/src"]
            java.srcDirs = ["src/tests/src"]
        }
    }
}

dependencies {
    compile project(':relatedProjects:submoduleAA')
    compile project(':relatedProjects:submoduleAB')
}

但是当我尝试构建./gradlew assembleDebug时，我每次都会收到错误

FAILURE: Build failed with an exception.

* Where:
Build file   '.../ProjectRootDir/relatedProjects/submoduleA/library/build.gradle'   line: 38

* What went wrong:
A problem occurred evaluating project ':relatedProjects:submoduleA:library'.
> Project with path ':relatedProjects:submoduleAA' could not be found in project     ':relatedProjects:submoduleA:library'.

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to     get more log output.

第38行是

compile project(':relatedProjects:submoduleAA')

但当我运行./gradlew assembleDebug for submoduleA项目时一切正常 .

请各位帮助我 . 我如何将一个项目与另一个项目中的子项目一起用作子项目（子模块）？