From 87336c4c013e032c6dd4f1b798d9554f775bcfd1 Mon Sep 17 00:00:00 2001
From: Jaime van Kessel <nallath@gmail.com>
Date: Thu, 2 Mar 2017 17:11:33 +0100
Subject: [PATCH] Fixed exception for clean start

---
 cura/Settings/UserChangesModel.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/cura/Settings/UserChangesModel.py b/cura/Settings/UserChangesModel.py
index ed070d55a9..526529ff6f 100644
--- a/cura/Settings/UserChangesModel.py
+++ b/cura/Settings/UserChangesModel.py
@@ -37,6 +37,8 @@ class UserChangesModel(ListModel):
     def _update(self):
         items = []
         global_stack = Application.getInstance().getGlobalContainerStack()
+        if not global_stack:
+            return
         stacks = ExtruderManager.getInstance().getActiveGlobalAndExtruderStacks()
 
         # Check if the definition container has a translation file and ensure it's loaded.