android开发Duplicate class编译出现类重复问题的定位以及解决方法

Task :app:checkReleaseDuplicateClasses FAILED

Duplicate class com.google.common.util.concurrent.ListenableFuture found in modules jetified-guava-20.0 (com.google.guava:guava:20.0) and jetified-listenablefuture-1.0 (com.google.guava:listenablefuture:1.0)

解决方法：
1. Navigation -> Search Everywhere，勾选Include non-project items进行全局搜索

2. 比如搜索com.google.guava就可以搜索出所有的有关的依赖库

3. ./gradlew app:dependencies查看找出依赖库之间的关系

4. 找到有关的依赖库xxx:xx:x 
	implementation("xxx:xx:x") {
	    exclude group: 'com.google.guava'
	}
        或者全部库排查如下：
        configurations.all {
           exclude group: 'com.google.guava', module: 'listenablefuture'
        }