[pluggo] buildassist file path

hello,
for some reason i can't make the buildassist work with folders.
i have a folder foo-source, there is my foo.mxt and my foo_include folder.
in the patch i tried buildassist @path /foo_include @type folder but it won't be recognised: error: buildassist cannot locate file /foo_include .
i tried it without the slash , i tried dot notation and i tried the full path /HD/Users/me/.../foo_include . nothing works
any help? and please don't point me to the electrotap website (which solution i found in the archives), because that website is not loading.
thanks, stephen