Appcompat V7 Package Does Not Exist

Using tools 23.0.2 And latest SDK Using manual ant build. I've checked my xml resources for errors. I've run them through tidy and they are ok. I've cleaned the project. But still

Solution 1:

In case anyone else runs into this issue:

The problem stemmed from utilizing a file from part of the support library itself.

All I needed to modify in that file was the following:

import android.support.v7.appcompat.R;
to
import my.package.R;