android-support-v7-appcompat支持库不与android 2.2一起使用

When I have import android-support-v7-appcompat support library in my workspace and add to my project with android 4.4 then its working fine but less than api level 11 its's not working. I used it for action bar in my project. When i am working with android 2.2 then it gives error in my console. ThanksWhen I have import android-support-v7-appcompat