filechooser.open_file has started crashing on IOS, was working perfectly before

[temitayoadefemimatthew]

filechooser.open_file crashes on IOS, was working fine before. here is the traceback

File "/Users/temitayoadefemi/kivy-ios/merri-ios/YourApp/main.py", line 8006, in <module>
   File "/private/var/containers/Bundle/Application/88A2B7FF-044D-4FFB-ACA7-518B0FEF6F3C/merri.app/lib/python3.8/site-packages/kivy/app.py", line 950, in run
     runTouchApp()
   File "/private/var/containers/Bundle/Application/88A2B7FF-044D-4FFB-ACA7-518B0FEF6F3C/merri.app/lib/python3.8/site-packages/kivy/base.py", line 560, in runTouchApp
     EventLoop.mainloop()
   File "/private/var/containers/Bundle/Application/88A2B7FF-044D-4FFB-ACA7-518B0FEF6F3C/merri.app/lib/python3.8/site-packages/kivy/base.py", line 334, in mainloop
     self.idle()
   File "/private/var/containers/Bundle/Application/88A2B7FF-044D-4FFB-ACA7-518B0FEF6F3C/merri.app/lib/python3.8/site-packages/kivy/base.py", line 378, in idle
     self.dispatch_input()
   File "/private/var/containers/Bundle/Application/88A2B7FF-044D-4FFB-ACA7-518B0FEF6F3C/merri.app/lib/python3.8/site-packages/kivy/base.py", line 329, in dispatch_input
     post_dispatch_input(*pop(0))
   File "/private/var/containers/Bundle/Application/88A2B7FF-044D-4FFB-ACA7-518B0FEF6F3C/merri.app/lib/python3.8/site-packages/kivy/base.py", line 295, in post_dispatch_input
     wid.dispatch('on_touch_up', me)
   File "kivy/_event.pyx", line 709, in kivy._event.EventDispatcher.dispatch
   File "/private/var/containers/Bundle/Application/88A2B7FF-044D-4FFB-ACA7-518B0FEF6F3C/merri.app/lib/python3.8/site-packages/kivy/uix/behaviors/button.py", line 179, in on_touch_up
     self.dispatch('on_release')
   File "kivy/_event.pyx", line 705, in kivy._event.EventDispatcher.dispatch
   File "kivy/_event.pyx", line 1248, in kivy._event.EventObservers.dispatch
   File "kivy/_event.pyx", line 1172, in kivy._event.EventObservers._dispatch
   File "/Users/temitayoadefemi/kivy-ios/merri-ios/YourApp/main.py", line 3946, in uploadid
   File "/private/var/containers/Bundle/Application/88A2B7FF-044D-4FFB-ACA7-518B0FEF6F3C/merri.app/lib/python3.8/site-packages/plyer/facades/filechooser.py", line 50, in open_file
     return self._file_selection_dialog(mode="open", *args, **kwargs)
   File "/private/var/containers/Bundle/Application/88A2B7FF-044D-4FFB-ACA7-518B0FEF6F3C/merri.app/lib/python3.8/site-packages/plyer/platforms/ios/filechooser.py", line 37, in _file_selection_dialog
     self._open()
   File "/private/var/containers/Bundle/Application/88A2B7FF-044D-4FFB-ACA7-518B0FEF6F3C/merri.app/lib/python3.8/site-packages/plyer/platforms/ios/filechooser.py", line 59, in _open
     vc = UIApplication.sharedApplication().keyWindow.rootViewController()
   File "pyobjus/pyobjus.pyx", line 488, in pyobjus.pyobjus.ObjcMethod.__call__
   File "pyobjus/pyobjus_conversions.pxi", line 240, in pyobjus.pyobjus.convert_cy_ret_to_py
   File "pyobjus/pyobjus_conversions.pxi", line 181, in pyobjus.pyobjus.convert_to_cy_cls_instance
   File "pyobjus/pyobjus.pyx", line 724, in pyobjus.pyobjus.autoclass
   File "pyobjus/pyobjus.pyx", line 527, in pyobjus.pyobjus.class_get_methods
   File "pyobjus/pyobjus.pyx", line 519, in pyobjus.pyobjus.objc_method_to_py
   File "pyobjus/pyobjus.pyx", line 239, in pyobjus.pyobjus.ObjcMethod.__init__
   File "pyobjus/type_enc.pxi", line 13, in pyobjus.pyobjus.parse_signature
   File "pyobjus/type_enc.pxi", line 2, in pyobjus.pyobjus.seperate_encoding
 IndexError: list index out of range
2020-09-24 09:36:32.028193+0100 merri[5440:474223] Application quit abnormally!
2020-09-24 09:36:33.140951+0100 merri[5440:474223] Leaving

[Xachman]

Yeah I also have had a lot of trouble getting it to work on macOS seems like plyer needs to be updated for a new pyobjus version probably.

[brentpicasso]

I do not currently see this reproducing on my end. Perhaps close as being too old?