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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.Message import Message
from UM.Resources import Resources from UM.Resources import Resources
from UM.Scene.SceneNode import SceneNode from UM.Scene.SceneNode import SceneNode
from UM.Settings.EmptyInstanceContainer import EmptyInstanceContainer
from cura.CuraApplication import CuraApplication from cura.CuraApplication import CuraApplication
from cura.CuraPackageManager import CuraPackageManager from cura.CuraPackageManager import CuraPackageManager
@ -268,6 +269,10 @@ class ThreeMFWriter(MeshWriter):
# Don't export materials not in use # Don't export materials not in use
continue 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")): if package_manager.isMaterialBundled(extruder.material.getFileName(), extruder.material.getMetaDataEntry("GUID")):
# Don't export bundled materials # Don't export bundled materials
continue continue