Hi everybody,
i tried to change to a multi-site setup locally, using the subdirectory option.
But after doing so, calling the site http://localhost/mynewsubsite doesn’t work.
It seems that GRAV is ignoring the setup.php, since it still is looking for the folders directly in /user/ - have a look:
Does anyone may have a hint for me?
Thx in advance,
Kilian
Okay,
i could get it run. 
If anyone is faced with the same problems, here is what i did:
I copied all the necessary folders back into /user/ and logged in.
After that i was redirected to a path like
/mynewsubsite/de/mynewsubsite/admin
which obviously could not work.
But afterwards calling the localhost redirected me into my new subdirectory and now everything works like a charm.