Index: trunk/de.ugoe.cs.swe.exercises/META-INF/MANIFEST.MF
===================================================================
--- trunk/de.ugoe.cs.swe.exercises/META-INF/MANIFEST.MF	(revision 7)
+++ trunk/de.ugoe.cs.swe.exercises/META-INF/MANIFEST.MF	(revision 8)
@@ -10,5 +10,6 @@
  net.sourceforge.texlipse;bundle-version="1.3.0",
  org.eclipse.core.filesystem;bundle-version="1.2.0",
- org.eclipse.ui.ide;bundle-version="3.5.1"
+ org.eclipse.ui.ide;bundle-version="3.5.1",
+ org.eclipse.core.resources;bundle-version="3.5.1"
 Bundle-ActivationPolicy: lazy
 Bundle-RequiredExecutionEnvironment: JavaSE-1.6