针对您遇到的 qt.qpa.xcb: could not connect to display 和qt.qpa.xcb: could not connect to di 错误,这通常与Qt应用程序无法连接到X server(图形服务器)有关。以下是一些可能的解决步骤,我将按照您提供的提示进行分点回答: 1. 确认问题背景和环境设置 首先,确认您的Qt应用程序是在哪种环境下运行的。如果...
在参考前面那篇文章运行 rosrun turtlesim turtlesim_node 命令时,出现错误: qt.qpa.xcb: could not connect to display qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found. This application failed to start because no Qt platform plugin could be initialized....
Qt库路径问题:确保Qt库路径正确设置。你可以尝试在程序运行前设置LD_LIBRARY_PATH环境变量,指向包含Qt库的路径。例如: exportLD_LIBRARY_PATH=/path/to/your/qt/libs 重新安装Qt:如果以上方法都无效,尝试重新安装Qt,确保安装的是与你的系统兼容的版本。 检查依赖项:确保你的应用程序的所有依赖项都已安装,并且与Qt...
参考:QXcbConnection: Could not connect to display 2. vim /etc/profile , 添加 export DISPLAY=:0.0 ,wq,保存退出 ,再 source /etc/profile 生效。 Qt5: QXcbConnection: Could not connect to display Aborted (core dumped)-CSDN社区 发布于 2021-09-14 11:26...
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ubuntu qt.qpa.xcb: could not connect to display 1、问题 2、解决方法,增加如下内容 root@PC1:~/home/test#vim /etc/profile export DISPLAY=:0.0 3、立即生效 root@PC1:/home/test# source /etc/profile 参考:https://blog.csdn.net/liyangbinbin/article/details/108401389...
qt.qpa.screen: QXcbConnection: Could not connect to display :0 Could not connect to any X display. 没有使用plt.show()或者imshow()之类的操作。在.bashrc中更改DISPLAY:=0也没有办法解决。 解决方案: importmatplotlib matplotlib.use('Agg')# 一定要加在import matplotlib.pyplot as plt前面。importmatpl...
"qt.qpa.xcb: could not connect to display qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found. This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem. Available platform pl...
qt.qpa.screen: QXcbConnection: Could not connect to display Could not connect to any X display. 第一种方法 网上一搜就能搜到的方法,大概率没效果。 先执行 echo ${DISPLAY} 查看返回的信息,如果不为空,则将返回的内容拼写到命令里,如 export DISPLAY=':0.0' ...
qt.qpa.xcb: could not connect to display qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "/root/anaconda3/envs/mmaction2/lib/python3.7/site-packages/cv2/qt/plugins" even though it was found. This application failed to start because no Qt platform plugin could be initialize...