Refreshing tex installation in Windows and Ubuntu

In miktex go to admin>settings (admin) and in general tab click refres FNDB button

In texlive in Ubuntu go to root directory by command

cd /

then run the command

sudo texhash

or you can run command

texconfig

and a window will open up with lots of option, choose "rehash rebuild file name data base".

 

Cheers
APaul

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