### Eclipse Workspace Patch 1.0
#P org.eclipse.equinox.p2.director
Index: src/org/eclipse/equinox/internal/p2/director/Messages.java
===================================================================
RCS file: /cvsroot/rt/org.eclipse.equinox/p2/bundles/org.eclipse.equinox.p2.director/src/org/eclipse/equinox/internal/p2/director/Messages.java,v
retrieving revision 1.22
diff -u -r1.22 Messages.java
--- src/org/eclipse/equinox/internal/p2/director/Messages.java	19 Apr 2010 06:18:18 -0000	1.22
+++ src/org/eclipse/equinox/internal/p2/director/Messages.java	20 Apr 2010 20:45:03 -0000
@@ -30,6 +30,8 @@
 	public static String Director_Task_Resolving_Dependencies;
 	public static String Director_Unsatisfied_Dependencies;
 	public static String Director_error_applying_configuration;
+	public static String Director_For_Target;
+	public static String Director_For_Target_Unselect_Required;
 
 	public static String Explanation_alreadyInstalled;
 	public static String Explanation_from;
Index: src/org/eclipse/equinox/internal/p2/director/SimplePlanner.java
===================================================================
RCS file: /cvsroot/rt/org.eclipse.equinox/p2/bundles/org.eclipse.equinox.p2.director/src/org/eclipse/equinox/internal/p2/director/SimplePlanner.java,v
retrieving revision 1.118
diff -u -r1.118 SimplePlanner.java
--- src/org/eclipse/equinox/internal/p2/director/SimplePlanner.java	19 Apr 2010 06:18:18 -0000	1.118
+++ src/org/eclipse/equinox/internal/p2/director/SimplePlanner.java	20 Apr 2010 20:45:03 -0000
@@ -17,6 +17,8 @@
 import org.eclipse.core.runtime.*;
 import org.eclipse.equinox.internal.p2.core.helpers.LogHelper;
 import org.eclipse.equinox.internal.p2.core.helpers.Tracing;
+import org.eclipse.equinox.internal.p2.director.Explanation.MissingIU;
+import org.eclipse.equinox.internal.p2.metadata.IRequiredCapability;
 import org.eclipse.equinox.internal.p2.metadata.query.UpdateQuery;
 import org.eclipse.equinox.internal.p2.rollback.FormerState;
 import org.eclipse.equinox.internal.provisional.p2.director.*;
@@ -124,6 +126,22 @@
 	private IStatus convertExplanationToStatus(Set<Explanation> explanations) {
 		if (explanations == null)
 			return new Status(IStatus.ERROR, DirectorActivator.PI_DIRECTOR, Messages.Director_Unsatisfied_Dependencies);
+
+		// hack to create a useful message when a user installs something intended for a target platform into the IDE
+		ArrayList<IStatus> forTargets = new ArrayList<IStatus>(0);
+		for (Explanation next : explanations) {
+			if (next instanceof Explanation.MissingIU) {
+				Explanation.MissingIU missingIU = (MissingIU) next;
+				if (missingIU.req instanceof IRequiredCapability && "A.PDE.Target.Platform".equals(((IRequiredCapability) missingIU.req).getNamespace())) //$NON-NLS-1$
+					forTargets.add(new Status(IStatus.ERROR, DirectorActivator.PI_DIRECTOR, missingIU.getUserReadableName(missingIU.iu)));
+			}
+		}
+		if (forTargets.size() > 0) {
+			// add a blurb about disabling 'include required software'.  The following line could be removed if bug 309863 is fixed
+			forTargets.add(new Status(IStatus.ERROR, DirectorActivator.PI_DIRECTOR, Messages.Director_For_Target_Unselect_Required));
+			// return a multi status with all the IUs that require A.PDE.Target.Platform
+			return new MultiStatus(DirectorActivator.PI_DIRECTOR, 1, forTargets.toArray(new IStatus[forTargets.size()]), Messages.Director_For_Target, null);
+		}
 		MultiStatus root = new MultiStatus(DirectorActivator.PI_DIRECTOR, 1, Messages.Director_Unsatisfied_Dependencies, null);
 		//try to find a more specific root message if possible
 		String specificMessage = null;
Index: src/org/eclipse/equinox/internal/p2/director/messages.properties
===================================================================
RCS file: /cvsroot/rt/org.eclipse.equinox/p2/bundles/org.eclipse.equinox.p2.director/src/org/eclipse/equinox/internal/p2/director/messages.properties,v
retrieving revision 1.27
diff -u -r1.27 messages.properties
--- src/org/eclipse/equinox/internal/p2/director/messages.properties	19 Apr 2010 06:18:18 -0000	1.27
+++ src/org/eclipse/equinox/internal/p2/director/messages.properties	20 Apr 2010 20:45:03 -0000
@@ -16,6 +16,8 @@
 Director_Unsatisfied_Dependencies=\
 Cannot complete the install because some dependencies are not satisfiable
 Director_error_applying_configuration=Unexpected failure applying configuration after for the installer plan execution.
+Director_For_Target = The following software cannot be installed because it is intended for use only in Plug-in Development Environment (PDE) target platforms. Please deselect these items and retry the operation.
+Director_For_Target_Unselect_Required = If provisioning a target platform then try disabling the option ''Include required software''
 
 Explanation_alreadyInstalled=Software currently installed: {0}
 Explanation_from=From: {0}