message change
diff --git a/org.eclipse.jdt.debug.ui/ui/org/eclipse/jdt/internal/debug/ui/actions/ActionMessages.properties b/org.eclipse.jdt.debug.ui/ui/org/eclipse/jdt/internal/debug/ui/actions/ActionMessages.properties
index 6098e27..a0a0238 100644
--- a/org.eclipse.jdt.debug.ui/ui/org/eclipse/jdt/internal/debug/ui/actions/ActionMessages.properties
+++ b/org.eclipse.jdt.debug.ui/ui/org/eclipse/jdt/internal/debug/ui/actions/ActionMessages.properties
@@ -53,7 +53,7 @@
 Evaluate.error.message.eval_adapter=No evaluation adapter
 Evaluate.error.message.exception.pattern={0} - {1}
 Evaluate.error.message.src_context=No Java source element context
-Evaluate.error.message.stack_frame_context=No stack frame context
+Evaluate.error.message.stack_frame_context=A stack frame must be selected to provide a context for an evaluation.
 Evaluate.error.message.wrapped_exception=An exception occurred: {0}
 Evaluate.error.problem_append_pattern={0}\n{1}
 Evaluate.error.title.eval_problems=Error Evaluating