.Map :: MoHAA Mapping

Hi all,
i have an complier error and found the reason for the error here in the forum,but i don?t know how to find him?
This is what i found:

ERROR:
WARNING: node without a volume
node has x tiny portals
node reference point xxx xxx xxx

Another invalid brush error. Infinite brushes cause this error.

SOLUTION: Find the brush at the given reference point and remove it. Or use a plugin (e.g. Rogue's) to remove the brush.

I got exactly these massage:

ERROR:
WARNING: node without a volume
node has 0 tiny portals
node reference point 0.00 0.00 0.00

But how can i found these reference point without the plugin in the radiant i have search but found nothing??????????????????????
Reference point, is this the brush-number???

Thx 2 everyone who can help,
Greetz Milles

node reference point 0.00 0.00 0.00

That is you're reference point, in radiant look for a brush within these co-ordinates, using the three views available. (Luckilly slap-bang in the middle.)

I have the same compile error ,but the strange thing for me is that is outside my map so there could ne nothing ,and I have tried to make a brush around thost coordinates o.o.o. and selct the inside tool nothing happened so it is a mystery for me to.

Who got the right answer for this , do I need to build my map just in the middle of the editor or does that make no difference