ros中的Qt5错误:使用不正确的名称调用的PyCapsule_GetPointer
ros中的Qt5错误:使用不正确的名称调用的PyCapsule_GetPointer
提问于 2022-03-31 12:16:45
我有一个Ubuntu20.04.4，安装了ros。
当我试图运行rqt时，会出现以下错误：
RosPluginProvider.load(qt_gui_cpp/CppPluginProvider) exception raised in __builtin__.__import__(qt_gui_cpp.cpp_plugin_provider, [CppPluginProvider]):
Traceback (most recent call last):
File "/opt/ros/noetic/lib/python3/dist-packages/rqt_gui/ros_plugin_provider.py", line 79, in load
module = __builtin__.__import__(
File "/opt/ros/noetic/lib/python3/dist-packages/qt_gui_cpp/cpp_plugin_provider.py", line 33, in <module>
from .cpp_binding_helper import qt_gui_cpp
File "/opt/ros/noetic/lib/python3/dist-packages/qt_gui_cpp/cpp_binding_helper.py", line 43, in <module>
from . import libqt_gui_cpp_sip
ValueError: PyCapsule_GetPointer called with incorrect name
RecursivePluginProvider.discover() loading plugin "qt_gui_cpp/CppPluginProvider" failed:
Traceback (most recent call last):
File "/opt/ros/noetic/lib/python3/dist-packages/qt_gui/recursive_plugin_provider.py", line 60, in discover
instance = self._plugin_provider.load(plugin_descriptor.plugin_id(), None)
File "/opt/ros/noetic/lib/python3/dist-packages/rqt_gui/ros_plugin_provider.py", line 90, in load
raise e
File "/opt/ros/noetic/lib/python3/dist-packages/rqt_gui/ros_plugin_provider.py", line 79, in load
module = __builtin__.__import__(
File "/opt/ros/noetic/lib/python3/dist-packages/qt_gui_cpp/cpp_plugin_provider.py", line 33, in <module>
from .cpp_binding_helper import qt_gui_cpp
File "/opt/ros/noetic/lib/python3/dist-packages/qt_gui_cpp/cpp_binding_helper.py", line 43, in <module>
from . import libqt_gui_cpp_sip
ValueError: PyCapsule_GetPointer called with incorrect name我试着卸载并重新安装ros/qt，但是它没有工作。
我的PyQt5 5.14.1和PyQt5-Si12.9.1安装了pip，pyqt5-dev 5.14.1安装了apt。如果卸载python包，rqt依赖于PySide2 ( 5.15.2.1版已安装)，但我有一个分段错误：
QtBindingHelper using pyside
PluginManager._discover() force discovery of plugins
RospkgPluginProvider._find_plugins() crawling for plugins of type 'qt_gui'
[1] 148476 segmentation fault (core dumped) rqt回答 1
Stack Overflow用户
发布于 2022-07-24 09:51:52
我遇到了同样的问题，我通过修改我的PYTHONPATH来修正它。我觉得我不应该这么做，而且还有别的东西在搅乱PYTHONPATH，但是嘿，它很有效。
就我而言，我有：
root@pc:~# echo $PYTHONPATH
/opt/ros/noetic/lib/python3/dist-packages:添加/opt/ros/noetic/lib/python3 3/dist-packages(找到下一步的路径)：
root@pc:~# export PYTHONPATH=$PYTHONPATH:/opt/ros/noetic/lib/python3/dist-packages
root@pc:~# echo $PYTHONPATH
/opt/ros/noetic/lib/python3/dist-packages:/usr/lib/python3/dist-packages我可以用rqt工具。
我查看了我的PySide2和PyQt5的安装位置：
root@pc:~# find /usr -name PySide2
/usr/include/PySide2
/usr/lib/python3/dist-packages/PySide2
/usr/share/PySide2
root@pc:~# find /usr -name PyQt5
/usr/lib/python3/dist-packages/PyQt5
/usr/share/sip/PyQt5并验证了我的软件包是由apt安装的，其中只有：
root@pc:~# dpkg -l | grep pyqt5
ii pyqt5-dev 5.14.1+dfsg-3build1 all Development files for PyQt5
ii python3-pyqt5 5.14.1+dfsg-3build1 amd64 Python 3 bindings for Qt5
ii python3-pyqt5.qtsvg 5.14.1+dfsg-3build1 amd64 Python 3 bindings for Qt5's SVG module
root@pc:~# dpkg -l | grep pyside
ii libpyside2-dev 5.14.0-1~exp1ubuntu5 amd64 Python bindings for Qt5 (development files)
ii libpyside2-py3-5.14 5.14.0-1~exp1ubuntu5 amd64 Python 3 bindings for Qt5 (base files)
ii python3-pyside2.qtcore 5.14.0-1~exp1ubuntu5 amd64 Python bindings for Qt5 core module (Python 3)
ii python3-pyside2.qtgui 5.14.0-1~exp1ubuntu5 amd64 Python bindings for Qt5 Gui module (Python 3)
ii python3-pyside2.qtsvg 5.14.0-1~exp1ubuntu5 amd64 Python bindings for Qt5 Svg module (Python 3)
ii python3-pyside2.qtwidgets 5.14.0-1~exp1ubuntu5 amd64 Python bindings for Qt5 Widgets module (Python 3)pip3显示没有安装任何软件包：
pip3 freeze | grep -i pyside我在安装/卸载pip3包时也遇到了这个错误(为了方便google获得这里)：
Traceback (most recent call last):
File "/opt/ros/noetic/lib/python3/dist-packages/python_qt_binding/binding_helper.py", line 108, in _select_qt_binding
QT_BINDING_VERSION = binding_loader(required_modules, optional_modules)
File "/opt/ros/noetic/lib/python3/dist-packages/python_qt_binding/binding_helper.py", line 185, in _load_pyside
_named_import('PySide2.%s' % module_name)
File "/opt/ros/noetic/lib/python3/dist-packages/python_qt_binding/binding_helper.py", line 133, in _named_import
module = builtins.__import__(name)
ModuleNotFoundError: No module named 'PySide2'页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/71692323
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