volley在线包引用，与本地Module引用的坑

注释掉在线引用，改用android studio 本地module，否则Release会引起冲突

Execution failed for task ‘:dexHdxRelease’.
com.android.ide.common.process.ProcessException: org.gradle.process.internal.ExecException: Process ‘command ‘C:\Program Files\Java\jdk1.8.0_60\bin\java.exe” finished with non-zero exit value 2

注释掉如下代码中的注释部分，则可正常执行： gradlew assembleRelease

dependencies {
    //    compile 'com.mcxiaoke.volley:library:1.0.18'
    compile fileTree(include: '*.jar', dir: 'libs')
    compile project(':adjust')
    compile files('libs/umeng-analytics-v5.5.3.jar')
    compile 'com.umeng.analytics:analytics:latest.integration'
    compile project(':android-volley-master2')
}