In the tex file, I want to use the package titlesec. But there is a error of

! Argument of \subparagraph has an extra }.

Is there some simple method to fix this?

The code is:

\documentclass{llncs}

\usepackage[compact]{titlesec}

In the .tex file, I want to use the package titlesec. But there is a error:

! Argument of \subparagraph has an extra }. 

Is there some simple method to fix this?

The code is:

\documentclass{llncs} \usepackage[compact]{titlesec}