Hey, I just wanted to upgrade to H21 on Linux Mint using the Launcher but I have some problems getting Houdini Launcher to start up. It tried to perform an update when I first started it but I guess there was an problem while installing it. So I tried to install it manually but up until now I didn't have any luck.
When I try to launch it via the Shell I get the following error
./houdini_launcher qt.qpa.plugin: From 6.5.0, xcb-cursor0 or libxcb-cursor0 is needed to load the Qt xcb platform plugin. 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.
As sidefx mentioned in the H21 requirements: "If you continue to encounter Qt errors on startup, then check that you have installed the Qt required packages found here:" https://doc.qt.io/qt-6/linux-requirements.html [doc.qt.io]
Same issue happened to my ubuntu 24.04 and resolved after installing those Qt packages.
LiBoNing As sidefx mentioned in the H21 requirements: "If you continue to encounter Qt errors on startup, then check that you have installed the Qt required packages found here:" https://doc.qt.io/qt-6/linux-requirements.html [doc.qt.io]