Compile TeX with SyncTeX

Adding the line \synctex=1 in the preamble of your TeX file will trigger synchronization with SyncTeX.

\documentclass{article}
\synctex=1
\usepackage{fullpage}
\begin{document}
...
\end{document}

Alternatively, you can run the pdflatex command with the -synctex=1 option:

pdflatex -synctex=1 yourFile.tex