Comment 7 for bug 242208

I also can confirm this bug. Nautilus opens all my pdfs in evince. Deskbar-applet + tracker search tool fail to open them (they do nothing). When starting from console, the following message appears:
"Error showing url: There is no default action associated with this location."

POSSIBLE CAUSE:
gnome-open gives exactly the same message as above when trying to open a pdf with it. gnome-open binds to gnome-vfs, which is going to be succeeded by gvfs. (gvfs-open works)
Apparently, deskbar-applet, tracker search tool, etc still bind to gnome-vfs instead of the new gvfs. Nautilus already binds to gvfs, so when trying to modify the file association ("open with..."), the change is made for gvfs but not for gnome-vfs apps.

Ubuntu 8.04 took Gnome 2.22 in the middle of a major transition (gnome-vfs --> gvfs), which is probably reflected in these bugs. Please provide some method to adjust the file associations for gnome-vfs, too, until the transition is finished!

Personally, i have to search many pdfs with tracker for my work, and it is irritating that they don't open in evince because of this bug.