[Tex/LaTex] what does calc.sty missing from the foler mean

calculationspackages

This error suddenly appeared in my file! It was not before
what should I do?

File `calc.sty' not found. \RequirePackage

Best Answer

I'm not expert but I try this and worked.

Copy all in this link: https://web.mit.edu/ghudson/dev/nokrb/third/tetex/texmf/tex/latex/tools/calc.sty

Paste in a note block and save as calc.sty where is save your .tex file