我正在尝试运行beeware教程。
添加toga.WebView时,我在运行时收到以下错误消息briefcase run -u
:
** (__main__.py:25869): WARNING **: 16:57:29.287: Failed to load shared library 'libwebkit2gtk-4.0.so.37' referenced by the typelib: /lib/x86_64-linux-gnu/libwebkit2gtk-4.0.so.37: undefined symbol: cairo_font_options_set_variations
/tmp/.mount_fubar0Ml5JP/usr/app_packages/toga_gtk/widgets/webview.py:21: Warning: cannot retrieve class for invalid (unclassed) type 'void'
self.webview = WebKit2.WebView()
Traceback (most recent call last):
File "/tmp/.mount_fubar0Ml5JP/usr/app_packages/toga_gtk/app.py", line 93, in gtk_startup
self.interface.startup()
File "/tmp/.mount_fubar0Ml5JP/usr/app/fubarr/app.py", line 32, in startup
song=toga.WebView(url="https://stackoverflow.com")
File "/tmp/.mount_fubar0Ml5JP/usr/app_packages/toga/widgets/webview.py", line 28, in __init__
self._impl = self.factory.WebView(interface=self)
File "/tmp/.mount_fubar0Ml5JP/usr/app_packages/toga_gtk/widgets/base.py", line 11, in __init__
self.create()
File "/tmp/.mount_fubar0Ml5JP/usr/app_packages/toga_gtk/widgets/webview.py", line 21, in create
self.webview = WebKit2.WebView()
TypeError: could not get a reference to type class
到目前为止我尝试了什么:
- 将 pycairo 降级到 1.11.1
- 只需
import toga; toga.WebView(url="https://stackoverflow.com")
在 virtualenv 中运行 ..即可 - 网络搜索
- 向意大利面怪物祈祷
我正在使用 ubuntu 19.10 和 python 3.7.5。
感谢您的任何提示。