Drawable Resource Not Found

First of all, put them in the hdpi folder, and then clean the project. It will update everything and the error should be gone.

See if what @Nebraska has suggested helps.

Else, try this:

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android" >
    <item android:state_checked="true" android:drawable="@android:color/white" />
    <item android:state_checked="false" android:drawable="@android:color/black" />
</selector>