ok, my map compiles just fine, but when I go to play it, I get this:
missing frame 0 of -1out_wall8

wtf? any clues? so far google aint helping :(

the - means that it is an animated texture, find the other
-1out_wall# and place them in the wad file or retexture that
wall with something else or rename that one texture and include it as a custom one, since renamed it wont be default anymore, cause the name changed

right on bro, according to wally the "-" means random tiling, but the fix is still the same. thanks for the info.