Pimcore X isn't detecting the bundle

Hi,

I'm following the steps to install the bundle(the steps i'm following are here: https://github.com/Sintraconsulting/pimcore-product-sync-plugin/wiki/How-to-Install-SintraPimcoreBundle) but once i've cloned the repository on src/SintraPimcoreBundle path, pimcore doesn't detect that bundle, what am i doing wrong?

Thanks,

Aleix