TeX Live and MacTeX ⇒ Missing Format File

[alexbcg]

I'm kind of a beginner here and so have very little technical knowledge as to what is going on beyond typing the code to make pretty documents :/

I had been using TeXPad to edit my documents, with the standard recommended MacTeX installation on top of that. It was working brilliantly and then I got a new computer and transferred all my files to it. Now, when I want to typeset something I get no errors but nothing typesets. In the log it says this.

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Auto-detecting the appropriate typesetting chain...

/usr/local/texlive/2013/bin/x86_64-darwin/pdflatex -file-line-error -interaction=nonstopmode -synctex=1 -output-directory=/Users/admin/Desktop/texpadtest/.texpadtmp Untitled.tex
This is pdfTeX, Version 3.1415926-2.5-1.40.14 (TeX Live 2013)
I can't find the format file `pdflatex.fmt'!

What is going on here? I have heard I need to "rehash" something but have no idea what that means? Do I have to uninstall and reinstall everything, is there a setting I need to change? I would greatly appreciate any help to get my TeXPad up and running again so I can keep typing up notes - if you have any questions about my other settings in the app I will give you all the info you need!

[localghost]

Seems as if the format files are not installed correctly or not activated. Open a terminal (command line) and try to create the formats by hand in two steps.

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sudo fmtutil-sys --all
sudo texhash

The second command is for updating the file name database. Afterwards try a new compiler run. Alternatively you can try a reconfiguration.

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sudo texconfig rehash

Best regards and welcome to the board
Thorsten