Kivy-python:运行Hello world时出错

Question

在安装Kivy之后，我尝试运行Hello应用程序，但是我得到了一个错误。我已经搜索了它，但找不到满意的答案。以下是错误：

[INFO   ] Kivy v1.8.0
[INFO   ] [Logger      ] Record log in /home/duong/.kivy/logs/kivy_14-04-16_1.txt
[INFO   ] [Factory     ] 157 symbols loaded
[DEBUG  ] [Cache       ] register <kv.lang> with limit=None, timeout=Nones
[DEBUG  ] [Cache       ] register <kv.image> with limit=None, timeout=60s
[DEBUG  ] [Cache       ] register <kv.atlas> with limit=None, timeout=Nones
[INFO   ] [Image       ] Providers: img_tex, img_dds, img_pygame, img_pil, img_gif 
[DEBUG  ] [Cache       ] register <kv.texture> with limit=1000, timeout=60s
[DEBUG  ] [Cache       ] register <kv.shader> with limit=1000, timeout=3600s
[INFO   ] [Text        ] Provider: pygame
[DEBUG  ] [App         ] Loading kv <./my.kv>
[DEBUG  ] [App         ] kv <./my.kv> not found
[DEBUG  ] [Window      ] Ignored <egl_rpi> (import error)
[INFO   ] [Window      ] Provider: pygame(['window_egl_rpi'] ignored)
[WARNING] [WinPygame   ] Video: failed (multisamples=2)
[WARNING] [WinPygame   ] trying without antialiasing
[ERROR  ] [Window      ] Unable to use pygame
[ERROR  ] [Window      ] The module raised an important error: "Couldn't find matching   GLX visual"
 Exception kivy.core.CoreCriticalException: CoreCriticalException("Couldn't find matching GLX visual",) in 'kivy.properties.dpi2px' ignored
[DEBUG  ] [Window      ] Ignored <egl_rpi> (import error)
[INFO   ] [Window      ] Provider: pygame(['window_egl_rpi'] ignored)
[WARNING] [WinPygame   ] SDL wrapper failed to import!
[DEBUG  ] [Window      ] Ignored <sdl> (import error)
[DEBUG  ] [Window      ] Ignored <x11> (import error)
[CRITICAL] [Window      ] Unable to find any valuable Window provider at all!
[CRITICAL] [App         ] Unable to get a Window, abort.

Answer 1

这个错误通常是由于您的计算机有一个非常差的图形芯片，或糟糕的视频卡驱动程序。您的卡和驱动程序必须支持OpenGL ES 2，以使Kivy应用程序工作。如果您在虚拟机中运行这一功能，请确保为该VM打开了3D加速。

Answer 2

我收到了同样的错误消息(“无法获得窗口，中止”)。在kivy的虚拟安装中(直接从GitHub安装)如下所示：

pip install hg+http://bitbucket.org/pygame/pygame
pip install Cython
pip install git+git://github.com/kivy/kivy.git 

在我的例子中，前面有一个与png相关的错误，所以我尝试在我的虚拟主机中安装枕头：

pip install pillow

现在起作用了。