Ubuntu – Google Chrome does not open

google-chrome

When I click on the Google Chrome icon from the launcher it does not open. I tried searching in the dash and clicking on its icon but it does not open at all.
I tried the terminal as well, like this:

$ google-chrome

and this is the output:

 (google-chrome:19866): Gtk-CRITICAL **:
 IA__gtk_settings_set_long_property: assertion `GTK_SETTINGS
 (settings)' failed

 (google-chrome:19866): Gtk-CRITICAL **:
 IA__gtk_settings_set_long_property: assertion `GTK_SETTINGS
 (settings)' failed

 (google-chrome:19866): Gtk-CRITICAL **:
 IA__gtk_settings_set_long_property: assertion `GTK_SETTINGS
 (settings)' failed

 (google-chrome:19866): Gtk-CRITICAL **:
 IA__gtk_settings_set_long_property: assertion `GTK_SETTINGS
 (settings)' failed

 (google-chrome:19866): Gtk-CRITICAL **:
 IA__gtk_settings_set_string_property: assertion `GTK_SETTINGS
 (settings)' failed

 (google-chrome:19866): Gtk-CRITICAL **:
 IA__gtk_icon_theme_get_for_screen: assertion `GDK_IS_SCREEN (screen)'
 failed

 (google-chrome:19866): Gtk-CRITICAL **:
 IA__gtk_icon_theme_get_for_screen: assertion `GDK_IS_SCREEN (screen)'
 failed

 (google-chrome:19866): Gtk-CRITICAL **:
 IA__gtk_icon_theme_prepend_search_path: assertion `GTK_IS_ICON_THEME
 (icon_theme)' failed

 (google-chrome:19866): Gtk-CRITICAL **:
 IA__gtk_icon_theme_get_for_screen: assertion `GDK_IS_SCREEN (screen)'
 failed

 (google-chrome:19866): Gtk-CRITICAL **:
 IA__gtk_icon_theme_prepend_search_path: assertion `GTK_IS_ICON_THEME
 (icon_theme)' failed

 (google-chrome:19866): Gtk-CRITICAL **:
 IA__gtk_icon_theme_get_for_screen: assertion `GDK_IS_SCREEN (screen)'
 failed

 (google-chrome:19866): Gtk-CRITICAL **:
 IA__gtk_icon_theme_prepend_search_path: assertion `GTK_IS_ICON_THEME
 (icon_theme)' failed

 (google-chrome:19866): Gtk-CRITICAL **:
 IA__gtk_settings_set_string_property: assertion `GTK_SETTINGS
 (settings)' failed

 (google-chrome:19866): Gtk-CRITICAL **:
 IA__gtk_settings_set_string_property: assertion `GTK_SETTINGS
 (settings)' failed

 (google-chrome:19866): Gtk-CRITICAL **:
 IA__gtk_settings_set_string_property: assertion `GTK_SETTINGS
 (settings)' failed
 [19866:19866:0426/060718:ERROR:process_singleton_linux.cc(239)]
 readlink(/home/omar/.config/google-chrome/SingletonLock) failed:
 Invalid argument
 [19866:19866:0426/060718:ERROR:process_singleton_linux.cc(239)]
 readlink(/home/omar/.config/google-chrome/SingletonLock) failed:
 Invalid argument
 [19866:19866:0426/060718:ERROR:process_singleton_linux.cc(263)] Failed
 to create /home/omar/.config/google-chrome/SingletonLock: File exists
 [19866:19866:0426/060718:ERROR:process_singleton_linux.cc(239)]
 readlink(/home/omar/.config/google-chrome/SingletonLock) failed:
 Invalid argument
 [19866:19866:0426/060718:ERROR:chrome_browser_main.cc(1157)] 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.

Best Answer

If you don't find the Singleton* files discussed in other answers, another source of this error is exhaustion of disk space.

Try df -h to see how much space you have left on your partitions; if any are full, free up some space and try again.