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Add check for empty material instance containers before trying to fetch material metadata. This fixes failing to save a project on a printer with no materials (UM2 for example).

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CURA-9412
This commit is contained in:
j.delarago 2022-06-22 14:05:56 +02:00
parent 1142768d59
commit dd3abf7ff0
1 changed files with 5 additions and 0 deletions
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5
plugins/3MFWriter/ThreeMFWriter.py
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@ -12,6 +12,7 @@ from UM.Application import Application
from UM.Message import Message
from UM.Resources import Resources
from UM.Scene.SceneNode import SceneNode
from UM.Settings.EmptyInstanceContainer import EmptyInstanceContainer
from cura.CuraApplication import CuraApplication
from cura.CuraPackageManager import CuraPackageManager
@ -268,6 +269,10 @@ class ThreeMFWriter(MeshWriter):
# Don't export materials not in use
continue
if type(extruder.material) is EmptyInstanceContainer:
# This is an empty material container, no material to export
continue
if package_manager.isMaterialBundled(extruder.material.getFileName(), extruder.material.getMetaDataEntry("GUID")):
# Don't export bundled materials
continue