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Gracefully handle case if no material was found

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CURA-2494
This commit is contained in:
Jaime van Kessel 2016-10-05 09:40:16 +02:00
parent e66548099a
commit ad80678bc2
1 changed files with 2 additions and 1 deletions
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1
cura/QualityManager.py
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@ -159,6 +159,7 @@ class QualityManager:
else:
material_ids = set()
for material_instance in material_containers:
if material_instance is not None:
material_ids.add(material_instance.getId())
containers = UM.Settings.ContainerRegistry.getInstance().findInstanceContainers(**criteria)