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Fix crash on adding a new printer

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CURA-6600
This commit is contained in:
Jaime van Kessel 2019-08-16 10:24:50 +02:00
parent 46e5bc897f
commit 8d05ebef9d
1 changed files with 2 additions and 0 deletions
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2
cura/Machines/ContainerTree.py
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@ -42,6 +42,8 @@ class ContainerTree:
# \return For every quality type, one quality group.
def getCurrentQualityGroups(self) -> Dict[str, "QualityGroup"]:
global_stack = cura.CuraApplication.CuraApplication.getInstance().getGlobalContainerStack()
if global_stack is None:
return {}
variant_names = [extruder.variant.getName() for extruder in global_stack.extruders.values()]
material_bases = [extruder.material.getMetaDataEntry("base_file") for extruder in global_stack.extruders.values()]
extruder_enabled = [extruder.isEnabled for extruder in global_stack.extruders.values()]