Rendering problems in Android studio in the layouts android android-studio : I have installed android studio,and when it started it is showing these messages

Rendering problems The following classes could not be found android.support.design.widget.appbarlayout(Fix build path, Create class) android.support.design.widget.CoordinatorLayout(Fix build path,Create class)

I have searched alot on the Internet but not getting any correct solution Please help. Thank you.

My limits were finished to ask questions. So I edited previous one.
But now I am asking it newly once again.
Please suggest me a solution. 