Kivy sdl2 - 运行时错误： b'无法初始化 EGL

Question

我尝试在带有OpenGL 1.1的Windows 7上运行以下示例脚本：

from kivy.app import App
from kivy.uix.label import Label
class MyApp(App):
def build(self):
return Label(text='Hello world')

if __name__ == '__main__':
MyApp().run()

并且我接收到以下错误

[INFO ] [Logger ] Record log in C:UsersAdmin.kivylogskivy_20-03-09_20.txt 
[INFO ] [deps ] Successfully imported "kivy_deps.gstreamer" 0.2.0 
[INFO ] [deps ] Successfully imported "kivy_deps.angle" 0.2.0 
[INFO ] [deps ] Successfully imported "kivy_deps.glew" 0.2.0 
[INFO ] [deps ] Successfully imported "kivy_deps.sdl2" 0.2.0 
[INFO ] [Kivy ] v1.11.1 
[INFO ] [Kivy ] Installed at "F:Data_analyticsvenvlibsite-packageskivy_init_.py" 
[INFO ] [Python ] v3.6.0 (default, Jan 23 2017, 17:35:20) [MSC v.1900 32 bit (Intel)] 
[INFO ] [Python ] Interpreter at "F:Data_analyticsvenvScriptspython.exe" 
[INFO ] [Factory ] 184 symbols loaded 
[INFO ] [Image ] Providers: img_tex, img_dds, img_sdl2, img_gif (img_pil, img_ffpyplayer ignored) [INFO ] [Text ] Provider: sdl2 
[INFO ] [Window ] Provider: sdl2 
[INFO ] [Window ] Activate GLES2/ANGLE context 
[CRITICAL] [Window ] Unable to find any valuable Window provider. Please enable debug logging (e.g. add -d if running from the command line, or change the log level in the config) and re-run your app to identify potential causes sdl2 - RuntimeError: b'Could not initialize EGL' File "F:Data_analyticsvenvlibsite-packageskivycore_init_.py", line 71, in core_select_lib cls = cls() File "F:Data_analyticsvenvlibsite-packageskivycorewindowwindow_sdl2.py", line 152, in init super(WindowSDL, self).init() File "F:Data_analyticsvenvlibsite-packageskivycorewindow_init_.py", line 981, in init self.create_window() File "F:Data_analyticsvenvlibsite-packageskivycorewindowwindow_sdl2.py", line 290, in create_window self.get_gl_backend_name()) File "kivycorewindow_window_sdl2.pyx", line 224, in kivy.core.window._window_sdl2._WindowSDL2Storage.setup_window File "kivycorewindow_window_sdl2.pyx", line 74, in kivy.core.window._window_sdl2._WindowSDL2Storage.die
[CRITICAL] [App ] Unable to get a Window, abort.

我使用了值为angel_sdl2的用户环境变量KIVY_GL_BACKEND。

你知道我应该纠正什么并取得成功吗？

Answer 1

如果您安装了带有pip 的kivy，请尝试执行此操作

---

python -m pip uninstall kivy
python -m pip uninstall kivy.deps.sdl2
python -m pip uninstall kivy.deps.glew
python -m pip uninstall kivy.deps.gstreamer

现在重新安装gstreamer之外的所有东西。

python -m pip install --upgrade pip wheel setuptools
python -m pip install docutils pygments pypiwin32 kivy.deps.sdl2 
kivy.deps.glew --extra-index-url https://kivy.org/downloads/packages/simple/
python -m pip install kivy

这是从https://github.com/kivy/kivy/issues/6071

您可以在安装步骤后使用conda(我个人更喜欢这样(。

conda install -c evindunn pygame
conda install -c conda-forge kivy