Android Studio编译出错

这个问题一般是你在app的build.gradle文件中的依赖库 选项，重复依赖了某些lib库

解决办法如下：

1. 找到重复依赖的lib，删除该依赖的引用

2. 尝试在 app 的build.gradle目录下 加入

   defaultConfig {
      multiDexEnabled true
   }

3. 如果还不奏效尝试在app的build.gradle目录下加入

   packagingOptions {
      exclude 'META-INF/NOTICE' // will not include NOTICE file
      exclude 'META-INF/LICENSE' // will not include LICENSE file
      // as noted by @Vishnuvathsan you may also need to include
      // variations on the file name. It depends on your dependencies.
      // Some other common variations on notice and license file names
      exclude 'META-INF/notice'
      exclude 'META-INF/notice.txt'
      exclude 'META-INF/license'
      exclude 'META-INF/license.txt'
   }
   
   

请确定是否设置JAVA_HOME环境变量，以及JDK版本是否为1.7，不要使用JDK1.8。