On Windows, URLs use "/" not "\".
I get this message from Slick in the output window - slick is translating the forward slashes to backward slashes when it ought not.
Error processing DTD 'http:\\schemas.android.com\apk\res\android' for file 'E:\....\blah_item.xml'. Bad host address or host not found.
The URL in the XML file is:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"