I'm really new to LaTeX and am having a problem with mathtools.sty. I am using MikTeX and Texmaker.
When I try to create the pdf (compile?) it gives me the error:
! LaTeX Error: File `mathtools.sty' not found.Type X to quit or
to proceed,or enter new name. (Default extension: sty)Enter
file name:! Emergency stop. \usepackage
I looked this problem up on Google, and found a thread on this place. It said to open the Package Manager and download it there. I opened the Package manager, downloaded mathtools from it by pressing the "+". After doing this it still comes up with the same error, that mathtools.sty is missing.
I have tried reinstalling everything and still nothing works.
I really hope you can help and explain in a simple manner, so that even I can understand 🙂
Best Answer
Did you launch MiKTeX Package Manager as administrator? That might explain. Always run as administrator if you want a system-wide installation (for any user).
Double-clicking on + installs the package, right-clicking on + only selects the package for further installation, this lets you select several packages then install them in a single stroke instead of one after the other. To install you have to right-click on the
mathtoolsline and selectinstall, or click on theTasksmenu and select ‘Install’. That's all.