gpg lein credentials

output.txt

foobar:apij mmitchell$ gpg --version
gpg (GnuPG) 1.4.12
Copyright (C) 2012 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

foobar:apij mmitchell$ gpg --default-recipient-self -e ~/.lein/credentials.clj
You did not specify a user ID. (you may use "-r")

Current recipients:

Enter the user ID.  End with an empty line:  
gpg: no valid addressees                     
gpg: /Users/mmitchell/.lein/credentials.clj: encryption failed: no such user id
foobar:apij mmitchell$ gpg -r --default-recipient-self -e ~/.lein/credentials.clj
gpg: --default-recipient-self: skipped: public key not found
gpg: /Users/mmitchell/.lein/credentials.clj: encryption failed: public key not found