错误:任务执行失败 ':app:transformClassesWithDexForDebug'. com.android.build.api.transform.TransformException: java.lang.RuntimeException: com.android.ide.common.process.ProcessException: java.util.concurrent.ExecutionException: com.android.ide.common.process.ProcessException: org.gradle.process.internal.ExecException:处理命令 C:\ Program Files \ Java \ jdk1.7.0_79 \ bin \ java.exe完成 非零退出值1

Error:Execution failed for task ':app:transformClassesWithDexForDebug'. com.android.build.api.transform.TransformException: java.lang.RuntimeException: 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\jdk1.7.0_79\bin\java.exe'' finished with non-zero exit value 1

由于许多原因，发生了较高的错误.因此，我可以说明为什么会发生此错误，以及如何解决该错误.

The upper error occure due to lot of reason. So I can put why this error occure and how to solve it.

原因1:类文件名的重复

解决方案:

将某些类文件重构为库项目时.那时您要编写类文件的名称，因此，请仔细检查您是否没有重复的名称

when your refactoring of some of your class files to a library project. and that time you write name of class file So, double check that you do not have any duplicate names

原因2:当您有大量缓存时

解决方案:

有时候，如果您有大量的缓存，则会发生此错误，请解决. 转到File/Invalidate caches / Restart，然后选择Invalidate and Restart，它将清除您的缓存.

Sometime if you have lot of cache memory then this error occure so solve it. go to File/Invalidate caches / Restart then select Invalidate and Restart it will clean your cache memory.

原因3::存在内部错误或使用Beta版本切换回稳定版本时.

REASON 3 : When there is internal bug or used beta Version to Switch back to stable version.

解决方案:

解决方案很简单，请转到构建"菜单，然后单击"Clean Project"，然后在清洁后单击"Rebuild Project".

Solution is just simple go to Build menu and click Clean Project and after cleaning click Rebuild Project.

原因4::当系统内存不足时.

REASON 4 : When you memory of the system Configuration is low.

解决方案:

打开任务管理器并停止其他当时不常用的应用程序，以便释放空间并解决OutOfMemory.

open Task Manager and stop the other application which are not most used at that time so it will free the space and solve OutOfMemory.

原因5:问题是您的方法计数已超过65K.

REASON 5 : The problem is your method count has exceed from 65K.

解决方案:

打开您的项目build.gradle文件添加

defaultConfig {
        ...
        multiDexEnabled true
    }

并在依赖项中添加以下行.

and in dependencies add below line.

dependencies 
    {
       compile 'com.android.support:multidex:1.0.0'
    }