My own mod didn't create bin files

Me and a friend are trying to create our own mod, but when source sdk finished creating it, it didn't include a bin file, which creates a "could not find library client" when trying to load it.

I've tried to copy them from different mods, with various results:
Crashing
or
this:


Any help on how to fix/download bin files?

 

You have to compile the source code.

 

Thanks, found out that now.