Android studio编译问题

Android stuido2.0使用jdk1.8编译之后。
换回jdk1.7
Execution failed for task ‘:app:transformClassesWithDexForDebug’.

com.android.build.api.transform.TransformException:
com.android.ide.common.process.ProcessException:
java.util.concurrent.ExecutionException:
com.android.ide.common.process.ProcessException:
org.gradle.process.internal.ExecException:
Process ‘command ‘C:\Program Files\Java\jdk1.8.0_66\bin\java.exe”
finished with non-zero exit value 2
解决在build.gradle中添加
android {
compileSdkVersion 23
buildToolsVersion “24.0.0 rc3”

defaultConfig {
    applicationId "com.example"
    minSdkVersion 16
    targetSdkVersion 23
    versionCode 1
    versionName "1.0"
    //这个
    multiDexEnabled true

问题2：

FAILURE: Build failed with an exception.

• What went wrong:
  Execution failed for task ‘:app:transformClassesWithJarMergingForDebug’.

  com.android.build.api.transform.TransformException: java.util.zip.ZipException: duplicate entry: jp/co/recruit_lifestyle/android/widget/AnimationImageView.class

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

需要检查是否重复导入jar包
jar包问题，清理Build/clear 检查