File association to unlisted application

While browsing files in nautilus, I want to open a tex file with Kile. But, when I get to a dialog similar to the screenshot below, I do not see Kile. Yet, I see it in the "Open With" menu.

How do I fix this?

In GNOME3 when apps that show on the right click Open With Other Application context menu but not on the right click Properties menu do so because the Exec= line in the apps .desktop doesn't end with a %letter

That's the case with Kile. The 2 most likely letters would be f or U, I'd try U first.

gksudo gedit /usr/share/applications/kde4/kile.desktop

Make the Exec= line look like this

Exec=kile %U     

Should then show (do a log out/in if needed)

Copied from my answer here.

Alternate method

An alternate method, (to set as default), on a per user basis would be to edit ~/.local/share/applications/mimeapps.list

In the [Default Applications] section you'd look for this line for plain text, text/plain= and this line for LaTex files, text/x-tex=

You'd edit either or both to set Kile as default as such

text/plain=kile.desktop
text/x-tex=kile.desktop