While running my level, this error came out, complaining about "Bad format (24 and 32bit RLE only)

I've only changed the name of my wmp and this problem appeared. I tried changing it back but the problem still exists...

please help.

Copy and paste from the manual->Error Messages

The bitmap file contains an invalid format. The color depth
must be 8 bit or 24 bit on normal textures, and 32 bit on
textures with alpha channel.


Try resave your bitmap as stated above.

sorry it's my mistake, instead of using level_load(level_str) where level_str should be "...wmb", i've accidentally pasted "...wmp" hence causing the error.

hope this helps others in future.

Well, I think Conitec should fix this error of error
while I test level_load with .wmp it gives error:W1199
in A6.31.4 but E1115 in A6.40.5 like gedimaster said.