From cc9fd5b33e42ea5d6f41c8ff649b2a014fa16450 Mon Sep 17 00:00:00 2001
From: don bright <hugh.m.bright@gmail.com>
Date: Sun, 1 Jul 2012 17:07:39 +0200
Subject: Add link to Wikibooks manual for 'not 2-manifold' error on export.


diff --git a/src/mainwin.cc b/src/mainwin.cc
index 08fbec5..22bc498 100644
--- a/src/mainwin.cc
+++ b/src/mainwin.cc
@@ -1359,7 +1359,7 @@ void MainWindow::actionExportSTLorOFF(bool)
 	}
 
 	if (!this->root_N->p3->is_simple()) {
-		PRINT("Object isn't a valid 2-manifold! Modify your design..");
+		PRINT("Object isn't a valid 2-manifold! Modify your design. See http://en.wikibooks.org/wiki/OpenSCAD_User_Manual/STL_Import_and_Export");
 		clearCurrentOutput();
 		return;
 	}
-- 
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