[Tex/LaTex] LaTeX cannot find installed packages


It seems that I have two installations of TeXlive, one of which is more updated.

When I run latex, it seems to search packages inside the old installation. How can I direct latex to look for the updated installation?

All my packages in the new installation (such as tcolorbox) are listed as directories in the directory /usr/local/texlive/2015/texmf-dist/tex/latex/.

The old installation lists the package files in /usr/share/texlive/texmf-dist/tex/latex/.

Also, the command which latex gives /usr/bin/latex.

Best Answer

The path variable can be set in TeXstudio in options -> Configure TeXstudio -> Build.

Then tick the Show Advanced Options in the lower left corner.

Then put your path in Commands, in my case it is


click OK.

If your path is set in .bashrc to include the texlive installation, then you can test it with opening TeXstudio in a terminal which has the correct $PATH value. With which you can find the path to the pdflatex:

$ which pdflatex /usr/local/texlive/2018/bin/x86_64-linux/pdflatex

and paste it into TeXstudio.