Quick start
Linux strips the executable permission from downloaded files, so the AppImage needs it restored once before first launch:
cd ~/Downloads
chmod +x GenViz-*.AppImage
./GenViz-*.AppImagePrefer clicking? In Files, right-click the AppImage → Properties → enable Executable as Program, then double-click it.
Troubleshooting
Double-clicking opens “Disk Image Mounter” or does nothing
The AppImage isn’t marked executable yet. Without that permission, Ubuntu treats it as
a disk image to mount instead of an app to run. Fix it with the chmod +x step from
Quick start (or the Properties toggle), then launch it again.
Terminal shows dlopen(): error loading libfuse.so.2
AppImages need FUSE 2, which Ubuntu 22.04 and later no longer install by default. Install it once:
Ubuntu 24.04 and newer:
sudo apt install libfuse2t64Ubuntu 22.04 / Debian 12:
sudo apt install libfuse2Sandbox error on launch
Ubuntu 23.10 and newer restrict unprivileged user namespaces, which can block the
app’s security sandbox from starting and stop the launch with an error mentioning chrome-sandbox. This is a known beta issue we are working to resolve in the app
itself. If you hit it, please report it to support@genviz.ai with the exact error text.
Blank or glitchy window
If the window renders blank or flickers under Wayland (the Ubuntu default), try an Xorg session: log out, click the gear icon on the login screen, and choose Ubuntu on Xorg. Let us know if this happens — it helps us prioritize the fix.
Signing in
Signing in opens your web browser and returns you to the app when you approve. Keep the app running while you complete the sign-in in the browser. If the app doesn’t come forward after approving, switch back to it manually — and if you end up stuck signed out, we want to hear about it at support@genviz.ai.
Updates
GenViz updates itself by replacing the AppImage file in place. Keep the file somewhere your
user can write to (for example ~/Applications or ~/Downloads), not
in a system-owned directory.