Seeking Serendipity

This is an add-on to Dave’s posting on ._ (dot underscore) files and CodeSign errors (see http://shortpath.blogspot.com/2009/07/codesign-error-and-fbconnect-library.html.) My problem was different, but started with repeated:
“The binary you uploaded was invalid. The signature was invalid, or it was not signed with an Apple submission certificate.”
Note: I wasn’t able to compress the file using find (I [...]