Error simply by including the pstricks-add package [duplicate]

This question already has an answer here:

This is a minimal working example of my code:

\documentclass[12pt]{article}
\begin{document}
test
\end{document}


By removing the \usepackage{pstricks-add}, everything works properly. With this line in the code, however, I obtain the error:

! Paragraph ended before \ProvidesPackageRCS@i was complete.<to be read
again>\par


I have read another thread with the same problem, but there, the answers suggest waiting a few days for the bug to be fixed. The thread, however, was placed a month ago. And I have installed texmaker and MikTex this week.

Also, I can't find older versions of the pstricks-add package to replace the one installed right now.

Has anyone solved this problem yet?

Thank you very much.