macOS High Sierra バージョン10.13.2 での kivy実行時のエラーについて

macOS High Sierra バージョン10.13.2　に
Python 3.6.4
Kivy==1.10.1.dev0
を導入し、

python
1from kivy.app import App
2from kivy.lang import Builder
3from kivy.uix.boxlayout import BoxLayout
4import time
5
6Builder.load_string('''
7<CameraClick>:
8    orientation: 'vertical'
9    Camera:
10        id: camera
11        resolution: (640, 480)
12        play: False
13    ToggleButton:
14        text: 'Play'
15        on_press: camera.play = not camera.play
16        size_hint_y: None
17        height: '48dp'
18    Button:
19        text: 'Capture'
20        size_hint_y: None
21        height: '48dp'
22        on_press: root.capture()
23''')
24
25class CameraClick(BoxLayout):
26    def capture(self):
27
28    	camera = self.ids['camera']
29    	timestr = time.strftime("%Y%m%d_%H%M%S")
30    	camera.export_to_png("IMG_{}.png".format(timestr))
31    	print("Captured")
32
33class TestCamera(App):
34	def build(self):
35		return CameraClick()
36
37TestCamera().run()

上記のコードを実行すると、下記のようなエラーが起こります
(上記のコード以外でも同じ結果になりますが、参考までに記述させていただきます)

ターミナル

[INFO   ] [Logger      ] Record log in /Users/○○○/.kivy/logs/kivy_18-01-30_0.txt
[INFO   ] [Kivy        ] v1.10.1.dev0, git-Unknown, 20180127
[INFO   ] [Python      ] v3.6.4 (default, Jan  6 2018, 11:51:59) 
[GCC 4.2.1 Compatible Apple LLVM 9.0.0 (clang-900.0.39.2)]
[INFO   ] [Factory     ] 194 symbols loaded
[INFO   ] [Image       ] Providers: img_tex, img_imageio, img_dds, img_sdl2, img_gif (img_pil, img_ffpyplayer ignored)
[INFO   ] [OSC         ] using <multiprocessing> for socket
[INFO   ] [Window      ] Provider: sdl2
2018-01-30 00:05:40.449 Python[622:49718] ApplePersistenceIgnoreState: Existing state will not be touched. New state will be written to (null)
[CRITICAL] [Window      ] Unable to find any valuable Window provider.
sdl2 - RuntimeError: b'Failed creating OpenGL pixel format'
  File "/usr/local/lib/python3.6/site-packages/kivy/core/__init__.py", line 67, in core_select_lib
    cls = cls()
  File "/usr/local/lib/python3.6/site-packages/kivy/core/window/window_sdl2.py", line 140, in __init__
    super(WindowSDL, self).__init__()
  File "/usr/local/lib/python3.6/site-packages/kivy/core/window/__init__.py", line 960, in __init__
    self.create_window()
  File "/usr/local/lib/python3.6/site-packages/kivy/core/window/window_sdl2.py", line 272, in create_window
    self.fullscreen, resizable, state)
  File "kivy/core/window/_window_sdl2.pyx", line 217, in kivy.core.window._window_sdl2._WindowSDL2Storage.setup_window (/private/var/folders/tb/n8l1_21x04s03q79m256zm4r0000gn/T/pip-1x92mc3y-build/kivy/core/window/_window_sdl2.c:3058)
  File "kivy/core/window/_window_sdl2.pyx", line 66, in kivy.core.window._window_sdl2._WindowSDL2Storage.die (/private/var/folders/tb/n8l1_21x04s03q79m256zm4r0000gn/T/pip-1x92mc3y-build/kivy/core/window/_window_sdl2.c:1673)

[CRITICAL] [App         ] Unable to get a Window, abort.

sdl2周りがなんだか上手くいっていないのは見て解るのですが、どのように解決して良いのか解らず困っております。解決法のご教授をよろしくお願い致します。