Remarkable aborts startup due to "Attribute Error"

[ghost]

remarkable /usr/lib/python3/dist-packages/pdfkit/source.py:11: SyntaxWarning: "is" with a literal. Did you mean "=="? if self.type is 'file': *Spellchecking not enabled. *To enable spellchecking install pygtkspellcheck *https://pypi.python.org/pypi/pygtkspellcheck/ Traceback (most recent call last): File "/usr/bin/remarkable", line 66, in remarkable.main() File "/usr/lib/python3/dist-packages/remarkable/init.py", line 49, in main window = RemarkableWindow.RemarkableWindow() File "/usr/lib/python3/dist-packages/remarkable_lib/Window.py", line 52, in new builder = get_builder('RemarkableWindow') File "/usr/lib/python3/dist-packages/remarkable_lib/helpers.py", line 48, in get_builder builder.add_from_file(ui_filename) File "/usr/lib/python3/dist-packages/remarkable_lib/Builder.py", line 92, in add_from_file ele_widgets = tree.getiterator("object") AttributeError: 'ElementTree' object has no attribute 'getiterator'

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The error only occurs when using the .deb file which can be downloaded from your website. When clone the git repository it works fine.