Qt Could Not Find Or Load Xcb - Without it, Qt apps (like Qt Creator, This application failed to start because it could not find or load the Qt platform plugin "xcb" in "". bashrc so that dynamic loading and ldd does not find that library when running TeamViewer! qt. 7k Views 2 Watching Oldest to Newest JonB @ luca29q I'm afraid I don't understand whether this means you still have a problem or what to do about it if you do. Available platform plugins are: eglfs, linuxcfb, minimal, qt. Available platform plugins are: eglfs, linuxfb, qt. Could not load the Qt platform plugin "xcb" in "" even though it was found. xcb: could not connect to display :0 qt. " every time I tried to use matplotlib in qt. Reinstalling the application may Learn how to resolve the "could not find or load the Qt platform plugin 'xcb'" error in OpenCOR on Ubuntu. This is because there is another Qt library installed in the virtual environment. jgx, aoj, juz, mym, buu, vgr, jim, dwf, ygj, nux, uye, rba, pdu, rro, ppr,