Brush errors?

Hey guys,
I’m new to mapping and just spent the day today making my first, at first I could run it fine than after I added more to it and textured it, I got this error while compiling and than vbsp crashes:

If anyone could help me , would be great.

Thankks.

Post your compile log.

Are any of your brushes outside the grid?
Re-open hammer and see if it detects any bad brushes, if so, delete them.

Uhh, Turned out my skybox was outside.

Tyvm pince and tcb.