When doing Ctrl+B on SublimeText3, the following error is output:
[Compiling first.tex]
TraditionalBuilder: Invoking latexmk...
COULD NOT COMPILE!
Attempted command:latexmk -cd -e $pdflatex='pdflatex -interaction=nonstopmode -synctex=1 %S %O' -f -pdf first.tex
Build engine: Traditional Builder
Running the exact same command compiles a pdf file just fine.
This answer does not solve the problem, as I've
Removed spaces around "="
Done a "Reconfigure LaTeXTools and migrate settings".
Made sure pdflatex is installed.
Made sure the path for texpath is correct.