Conversion to Dalvik format failed: Unable to execute dex: Multiple dex files define Landroid/suppor

1> right click on project and go to build Path>configuration build path

2>and select library tab and click on support-v4 library and click on remove

3>click on ok

and then clean your project and run it will work:-)

参考：http://stackoverflow.com/questions/23058378/unable-to-execute-dex-multiple-dex-files-define-landroid-support-v4-accessibili