Unfixable BSP hole

[Rick-sama]

A wall (linedef) in my map is one big bsp hole.
I've tried everything to fix it.
It doesn't show up in the error checking search and only shows up in the game.
In Sector Selection mode the room with the bad wall highlights when my cursor is only NEXT to the bad linedef.
I dont' think it's my fault, I didn't do anything wrong.
I've used other tools for mapping for years.
The room was fine until I deleted a certain linedef. (Wasn't an important one)
A person can't map if he can't delete unwanted linedefs.
Hopefully this is a fixable error and I can salvage my room.

The bad linedef is the leftmost one.
http://img352.imageshack.us/img352/6756/badline3pj.gif

[andrewj]

More information is required:

- What source port are you using?
- What node builder are you using?
- What map editor are you using?

Edit: forget that last question, I got it.

[Rick-sama]

I'm using ZDOOM and Doom Builder.
The error isn't ZDOOM's fault.

[CodeImp]

Judging from the location of your mouseecursor when that sector highlights, it looks like you have an impassable double-sided linedef there. Select the linedef and go to its properties. In the Sidedefs tab, uncheck the checkbox that says "Back side" and it wil remove the second sidedef.

[Rick-sama]

That seemed to fix it.
You know your way around mapping!
Thanks alot CodePimp. You're the man!
Doom Builder is the greatest.
My compliments.

[Planky]

Rick-sama said:

You know your way around mapping!

Funny that.