Error "already added: Landroid/support/v4/" when use multidex

[trungptdhcn]

I use mutidex, but when i build my project i have issue this is logcat with --debug flag:

I created MaidexList.txt in project and add classes of mutidex. this is my MaindexList

This is my build.xml:

I don't know what is error.When i put classes "error already added" to MaindexList.txt, this error appear with another class in support v4 library . Please help check the issue!

[fernando-goncalves-movile]

Maybe you included the support-v4 twice!
Did you already tried this? http://stackoverflow.com/questions/16746558/android-gradle-build-and-the-support-library/17375109#17375109