diff -r b82c0fc2b875 -r a997dd517a4c ProjectDefinition.st
--- a/ProjectDefinition.st	Thu Jan 19 17:20:58 2012 +0100
+++ b/ProjectDefinition.st	Thu Jan 19 17:27:09 2012 +0100
@@ -6109,7 +6109,17 @@
 !
 
 allClasses
-    ^ self allClassNames collect:[:nm | Smalltalk classNamed:nm]
+    ^ self allClassNames 
+        collect:[:nm | 
+            |cls|
+
+            cls := Smalltalk classNamed:nm.
+            cls isNil ifTrue:[
+                Transcript showCR:('%1: failed to autoload class %2' bindWith:self name with:nm)
+            ].
+            cls
+        ]
+        thenSelect:[:cls | cls notNil ].
 
     "Created: / 06-08-2011 / 15:47:36 / cg"
 !
@@ -6641,11 +6651,11 @@
 !ProjectDefinition class methodsFor:'documentation'!
 
 version
-    ^ '$Header: /cvs/stx/stx/libbasic/ProjectDefinition.st,v 1.377 2012-01-09 10:09:44 cg Exp $'
+    ^ '$Header: /cvs/stx/stx/libbasic/ProjectDefinition.st,v 1.378 2012-01-19 16:27:09 cg Exp $'
 !
 
 version_CVS
-    ^ '$Header: /cvs/stx/stx/libbasic/ProjectDefinition.st,v 1.377 2012-01-09 10:09:44 cg Exp $'
+    ^ '$Header: /cvs/stx/stx/libbasic/ProjectDefinition.st,v 1.378 2012-01-19 16:27:09 cg Exp $'
 !
 
 version_SVN