I had the same problem. It was because my design file used an <include > statement.
It appears that the designer doesn't like it, or has a problem resolving the path. This is unfortunate because I use them whenever I have a <ViewFlipper> element. That way my xml isn't so messy. something like: <ViewFlipper android:id="@+id/flMainFlipper" android:layout_width="fill_parent" android:layout_height="fill_parent"> <include android:id="@+id/view1" layout="@layout/view1" /> <include android:id="@+id/view2" layout="@layout/view2" /> </ViewFlipper> Hope this helps. It was my cause for that same error. Anyone have a solution to this? -- View this message in context: http://mono-for-android.1047100.n5.nabble.com/Designer-Error-tp5709771p5709774.html Sent from the Mono for Android mailing list archive at Nabble.com. _______________________________________________ Monodroid mailing list Monodroid@lists.ximian.com UNSUBSCRIBE INFORMATION: http://lists.ximian.com/mailman/listinfo/monodroid