LaTeX doesn't work after upgrade to 12.10

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http://askubuntu.com – I just updated to Ubuntu 12.10 but now LaTeX doesn't work any more. Kile always asks me "did you run LaTeX?". I'm quite new in this stuff, so it seems a bit strange for me, because in 12.04 it worked always without any exception. I also tried it with other Editors, but there were similar mistakes, so I guess it is related to the upgrade. Perhaps anybody of you has a hint. (HowTos)