onboard-settings crashed with AttributeError in get_selected_layout_filename(): 'NoneType' object has no attribute 'get_selected'

Status changed to 'Confirmed' because the bug affects multiple users.

Happened to me too. This appears to be caused by a change in libgtk-3-0 3.3.6-0ubuntu1. I've worked around this in trunk yesterday.

This bug was fixed in the package onboard - 0.97.0-0ubuntu1

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onboard (0.97.0-0ubuntu1) precise; urgency=low

  * Request for sponsorship: New release available (LP: #932855)
  * debian/control:
      Build-Depends: add libdconf-dev
      Depends: add gir1.2-wnck-3.0, libdconf0
      Recommends: add gir1.2-atspi-2.0
  * debian/copyright: add year 2012
  * debian/patches: update onboard-defaults.conf file
  * Add improved scanning feature to osk extension
    - scanning works with all official layouts
    - different scan modes are available
    - support for 1, 2, 3 and 5 switches
    - devices can be configured to be used exclusively for scanning
  * Port osk extension to GTK3
  * Add auto-show with auto-move feature; requires at-spi2 (LP: #443986)
    - confirm activation of at-spi2 with a dialog
    - automatically move Onboard when it covers the input focus
    - no auto-move when the keyboard is manually shown
    - logging of focused at-spi accessibles through 'onboard -ddebug'
  * Hide and show Onboard with a middle click on the indicator icon
  * Add new icons for appindicator matching Ambiance and Radiance themes
  * Add lockdown options for kiosk mode (LP: #879944)
  * Silently embed into gnome-screen-saver if no app did so (LP: #857813)
  * Make Onboard aware of screen rotation (LP: 911821)
  * Protect against accidental resize/move of Onboard's windows (LP: #893644)
  * Add option to disable resize handles (LP: #930373)
  * Allow resizing with all mouse buttons
  * Show menu entry for Xubuntu/Xfce (LP: #833862)
  * Extend force-to-top mode to the Icon Palette
  * Allow /user/local/share/onboard as an alternative installation directory
  * Support starting onboard-settings in cli with non default language
  * Don't start more than one instance under normal usage
  * Fix onboard-settings crash in get_selected_layout_filename (LP: #913484)
  * Add double click and drag click also for non dwelling mode
  * Adjust category of the onboard-settings.desktop file (LP: #833873)
  * Add more modifier behaviors: cycle (default), dblclick, latch, lock
  * Add option to always show on visible workspace (LP: #803875)
  * Add Alan Bell's themes: Typist, ModelM
  * Add HighContrast, HighContrastInverse and LowContrast themes
  * Option to track GTK theme to have Onboard switch to matching theme
  * Make the colors of the icon of the Icon Palette adapt to the theme
  * Calculate corner radius of the Icon Palette based on it's size
  * Let Onboard draw itself the icon of Icon Palette instead of loading it
  * Make a newly created customized theme the active one
  * Stop selecting the default theme when resetting or deleting a theme
  * Remove overrides for font setting and key label from themes
  * Add format information to schemas, themes and colors files
  * Convert sticky-key-behavior and system-theme-associations to dicts
  * Show touch handles when activating drag click in dwell mode
  * Show touch handles on long press of the move button
  * Save window geometry 5 seconds after it was changed (LP: #819971)
  * Add option to keep aspect ratio of keyboard window
  * Update and fix system defaults example file
  * Give the AppIndic...