Android : eclipse appcompat->res->drawable-xxxhdpi error

I just updated my eclipse to SDK 21. I know that eveytime i create project the eclipse will also create project named appcompat_v7. but the appcompat_v7 is showing error at the res->drawable-xxxhdpi folder. and it also make my project error, and showing this alert at console

[2014-12-05 11:03:25 - Tast] invalid resource directory name: C:\Users\FahmiSDK\workspace\appcompat_v7\res/drawable-ldrtl-xxxhdpi
[2014-12-05 11:03:25 - Tast] invalid resource directory name: C:\Users\FahmiSDK\workspace\appcompat_v7\res/drawable-xxxhdpi

Please, help me, how to resolve this problem? Thanks in advance