i get this message when i munge on all levels. I've tried making new ones and using old ones but i always get this message. any suggestions?

Have you recently modified *.BAT files contained either into "BFBuilder\Data\[...]" or in "BFBuilder\[ModID]\[...]" ?

i havent changed anything other than after this started i added pause so i could find which one is screwing up. its in build_PC worlds and modid (in this case test) worlds\ test world 1

Have you tried to re-extract the entire SWBF Mod Tools ZIP archive, flip' ?

not yet. i'll try now though

i redownloaded and installed and still nothing.

Might I know what BFBuilder application's version you're using ?...