Thanks for following up. There was probably a way to remove the lock file without stopping snapd and completely purging the chromium snap, but I'm glad that it worked for you anyway.
The messages you're seeing are harmless, you can safely ignore them. ** Changed in: chromium-browser (Ubuntu) Status: Incomplete => Invalid -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to chromium-browser in Ubuntu. https://bugs.launchpad.net/bugs/1970611 Title: Chromium fails to start from snap after 22.04 upgrade Status in chromium-browser package in Ubuntu: Invalid Bug description: Just went to open chromium to test a localhost website after upgrading to Ubuntu 22.04. It fails to launch with no error to desktop. I ran it from cli and got these errors. Chromium is installed from snap. Version info: Chromium 101.0.4951.41 snap Ubuntu 22.04 LTS Gnome 42.0 X11 package 1:7.7+23ubuntu2 /snap/chromium/1973/snap/command-chain/desktop-launch: line 366: cannot create temp file for here-document: No such file or directory Gtk-Message: 13:04:27.976: Failed to load module "xapp-gtk3-module" Gtk-Message: 13:04:28.061: Failed to load module "canberra-gtk-module" Gtk-Message: 13:04:28.064: Failed to load module "canberra-gtk-module" WARNING: Kernel has no file descriptor comparison support: Operation not permitted [17219:17219:0427/130428.478797:ERROR:process_singleton_posix.cc(1051)] Failed to create socket directory. [17219:17219:0427/130428.479040:ERROR:chrome_browser_main.cc(1431)] Failed to create a ProcessSingleton for your profile directory. This means that running multiple instances would start multiple browser processes rather than opening a new window in the existing process. Aborting now to avoid profile corruption. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/chromium-browser/+bug/1970611/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp