From cd25a3417194789b5da46a27f2cae10371c57562 Mon Sep 17 00:00:00 2001
From: Yorik van Havre <yorik@uncreated.net>
Date: Sun, 21 Jun 2015 21:45:18 -0300
Subject: [PATCH] Arch: added warning message when wall base is not a Part or
 Mesh

---
 src/Mod/Arch/ArchWall.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/Mod/Arch/ArchWall.py b/src/Mod/Arch/ArchWall.py
index 3797bdb11..d20128335 100644
--- a/src/Mod/Arch/ArchWall.py
+++ b/src/Mod/Arch/ArchWall.py
@@ -50,7 +50,10 @@ def makeWall(baseobj=None,length=None,width=None,height=None,align="Center",face
     if FreeCAD.GuiUp:
         _ViewProviderWall(obj.ViewObject)
     if baseobj:
-        obj.Base = baseobj
+        if baseobj.isDerivedFrom("Part::Feature") or baseobj.isDerivedFrom("Mesh::Feature"):
+            obj.Base = baseobj
+        else:
+            FreeCAD.Console.PrintWarning(str(translate("Arch","Walls can only be based on Part or Mesh objects")))
     if face:
         obj.Face = face
     if length: