Hi Futurulus !

Yes, I am glad to say that I do see the small window with sliders and buttons that you mentioned in your previous post. The Level Editor does not compile tranparently. (Yay!)

And yes, there is a diologue box that shows the compiling progress status.
I scanned it thoroughly, and there are no errors or warnings in it.

And yes in line (it is 17, not 20 ) in SED, it does say string level_str = <WarriorsExtreme.WMB> , just as you said it would!

So, at least for this level, everything seems to be "normal". However, the level still won't build!

However, I did notice something--- when I click on the little stop light icon (the RUN button), the Run diologue pops up. It says "Engine Options".
Beneath it, is this: warriors extreme.wdl -nx 30 extreme.wdl . whenever I recompile the level, I see a string of duplicates just as the previous, all growing longer and longer the more I build the level.
(So it ends up looking like warriors extreme.wdl -nx 30 extreme.wdl extreme.wdl extreme.wdl extreme.wdl extreme.wdl and so forth.)

Can this have something to do with the errors?

I tried deleting everything except warriors extreme.wdl but the problem persists.

Also, the errors are not consistent .
Sometimes when I compile the level, there are no popup errors--- in the screen where it says (c) Conitec. Dieburg. San Diego. www.3dgamestudio.com
A7 engine. etc., a little ways down it says : Mouse found. Speakers found. Compiling EXTREME.WDL- ESC to abort and Can't run EXTREME.WDL -- Startup failure. Any key to abort.
There goes the mysterious EXTREME.WDL ! But the level is named WARRIORS EXTREME.WMP!

Thanks VERY much for your reply, Futurulus !

Want_to_learn