I have configured ReactOS with:
but when I tried to install, I got an error, see attached screenshot.
After some debugging, I discovered that the problem was caused by missing resources for the italian in SAMSRV.
I attached a patch for fixing this bug.
However, this bug affects not only italian translation, but all languages with some components missing, and perhaps not only SAMSRV. Translators should take care of this in the future.