[Bug 1360522] Re: Post-upgrade from 12.04 LTS to 14.04 LTS, GTK cannot open .png files

[RecceDG]

** Package changed: ubuntu => glib2.0 (Ubuntu)

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Title:
  Post-upgrade from 12.04 LTS to 14.04 LTS, GTK cannot open .png files

Status in “glib2.0” package in Ubuntu:
  New

Bug description:
  I have had multiple problems with an upgrade from 12.04 LTS to 14.04
  LTS.

  This specific issue involves multiple errors from GTK and other glib
  applications not being able to process .png files.

  The crash files refer to

  GError: Unrecognized image file format. 
  GError: Couldn't recognize the image file format for file

  etc. All files referred to are .png

  Running gtk applications such as gimp produces a long list or warnings
  of the nature:

  Gtk-WARNING **: Error loading theme icon 'edit-cut' for stock:
  Unrecognized image file format

  The images load fine in gimp as images. As icons, nothing loads.

  I have reinstalled glib and libpng to no effect.

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