获取gradle依赖报告

在项目根目录下执行获取依赖报告的gradle，比如

gradle -q [项目名称]:dependencies 

这可以提供与该问题有关的以ASCⅡ码呈现的树，它会帮助你判断哪些是有冲突的版本：

+--- com.android.support.test:testing-support-lib:0.1 (*)
\--- com.android.support.test.espresso:espresso-contrib:2.0
     +--- com.android.support:recyclerview-v7:21.0.3
     |    +--- com.android.support:support-annotations:21.0.3
     |    \--- com.android.support:support-v4:21.0.3
     |         \--- com.android.support:support-annotations:21.0.3
     +--- com.android.support:support-v4:21.0.3 (*)
     \--- com.android.support.test.espresso:espresso-core:2.0 (*)