Hi,i decided to try out sandbox 3, but when i try to generate surface texture, i get an error that says "can't load level" following that an error report appears with the following errors:
[ 1] [Engine] C3DEngine::LoadLevel: Level name is not specified
[ 1] [System] Pak file Level.pak has absolute path level.pak, which is strange.

Does anyone know how i can fix this problem?