HaloMods "Classic" Read-only Archive

im having another problem with tool, when i type in: tool structure levels\splinter splinter, it says this:
building intermediate geometry....
building collision geometry....
### ERROR edge #30 is open (red)
### ERROR edge #54 is open (red)
### ERROR edge #68 is open (red)
### ERROR edge #70 is open (red)
### ERROR edge #674 is open (red)
### ERROR edge #1028 is open (red)
### ERROR edge #1028 is open (red)
### ERROR edge #2859 is open (red)
### ERROR edge #2868 is open (red)
### ERROR edge #3289 is open (red)
### ERROR failed to build collision geometry.
### ERROR failed to import collision bsp.

can someone please help me, ive been tryin to make a map, but this is one of the many problems ive been having

This happened because you left some of the edges open, if you are making Kirks tutorial the open edges are most likely around the base. Make sure you followed all of the steps right when attaching the bases. You can import the .wrl file to check where the errors are.