How to solve this NoneType not iterable error when launching kivy designer?

[iuliana iuliana]

## Environment Info

Pip is not installed

## Traceback

```
Traceback (most recent call last):
  File "D:\Anaconda_install\lib\site-packages\kivy\core\window\window_sdl2.py", line 747, in mainloop
    self._mainloop()
  File "D:\Anaconda_install\lib\site-packages\kivy\core\window\window_sdl2.py", line 479, in _mainloop
    EventLoop.idle()
  File "D:\Anaconda_install\lib\site-packages\kivy\base.py", line 342, in idle
    self.dispatch_input()
  File "D:\Anaconda_install\lib\site-packages\kivy\base.py", line 327, in dispatch_input
    post_dispatch_input(*pop(0))
  File "D:\Anaconda_install\lib\site-packages\kivy\base.py", line 233, in post_dispatch_input
    listener.dispatch('on_motion', etype, me)
  File "kivy\_event.pyx", line 707, in kivy._event.EventDispatcher.dispatch
  File "D:\Anaconda_install\lib\site-packages\kivy\core\window\__init__.py", line 1402, in on_motion
    self.dispatch('on_touch_down', me)
  File "kivy\_event.pyx", line 707, in kivy._event.EventDispatcher.dispatch
  File "D:\Anaconda_install\lib\site-packages\kivy\core\window\__init__.py", line 1418, in on_touch_down
    if w.dispatch('on_touch_down', touch):
  File "kivy\_event.pyx", line 707, in kivy._event.EventDispatcher.dispatch
  File "D:\Anaconda_install\lib\site-packages\kivy\uix\popup.py", line 228, in on_touch_down
    return super(Popup, self).on_touch_down(touch)
  File "D:\Anaconda_install\lib\site-packages\kivy\uix\modalview.py", line 247, in on_touch_down
    super(ModalView, self).on_touch_down(touch)
  File "D:\Anaconda_install\lib\site-packages\kivy\uix\widget.py", line 549, in on_touch_down
    if child.dispatch('on_touch_down', touch):
  File "kivy\_event.pyx", line 707, in kivy._event.EventDispatcher.dispatch
  File "D:\Anaconda_install\lib\site-packages\kivy\uix\widget.py", line 549, in on_touch_down
    if child.dispatch('on_touch_down', touch):
  File "kivy\_event.pyx", line 707, in kivy._event.EventDispatcher.dispatch
  File "D:\Anaconda_install\lib\site-packages\kivy\uix\widget.py", line 549, in on_touch_down
    if child.dispatch('on_touch_down', touch):
  File "kivy\_event.pyx", line 707, in kivy._event.EventDispatcher.dispatch
  File "D:\Anaconda_install\lib\site-packages\kivy\uix\widget.py", line 549, in on_touch_down
    if child.dispatch('on_touch_down', touch):
  File "kivy\_event.pyx", line 707, in kivy._event.EventDispatcher.dispatch
  File "D:\Anaconda_install\lib\site-packages\kivy\uix\widget.py", line 549, in on_touch_down
    if child.dispatch('on_touch_down', touch):
  File "kivy\_event.pyx", line 707, in kivy._event.EventDispatcher.dispatch
  File "D:\Anaconda_install\lib\site-packages\kivy\uix\widget.py", line 549, in on_touch_down
    if child.dispatch('on_touch_down', touch):
  File "kivy\_event.pyx", line 707, in kivy._event.EventDispatcher.dispatch
  File "D:\Anaconda_install\lib\site-packages\kivy\uix\behaviors\button.py", line 151, in on_touch_down
    self.dispatch('on_press')
  File "kivy\_event.pyx", line 703, in kivy._event.EventDispatcher.dispatch
  File "kivy\_event.pyx", line 1214, in kivy._event.EventObservers.dispatch
  File "kivy\_event.pyx", line 1138, in kivy._event.EventObservers._dispatch
  File "kivy\_event.pyx", line 703, in kivy._event.EventDispatcher.dispatch
  File "kivy\_event.pyx", line 1214, in kivy._event.EventObservers.dispatch
  File "kivy\_event.pyx", line 1138, in kivy._event.EventObservers._dispatch
  File "C:\Users\iulyd\kivy-designer\designer\utils\utils.py", line 198, in wrapper
    f(*args, **kwargs)
  File "C:\Users\iulyd\kivy-designer\designer\app.py", line 802, in _perform_new
    self._perform_open(new_proj_dir, True)
  File "C:\Users\iulyd\kivy-designer\designer\app.py", line 960, in _perform_open
    project = self.project_manager.open_project(file_path)
  File "C:\Users\iulyd\kivy-designer\designer\core\project_manager.py", line 518, in open_project
    if path in self.projects:
TypeError: argument of type 'NoneType' is not iterable

```

End of Traceback

[Alexander Taylor]

I'm afraid Kivy designer is not supported and doesn't work.