The command "lein deploy clojars" returned the following error.
Could not sign /Users/brad/work/github/ads-txt-crawler/target/ads-txt-crawler-0.0.6.jar Cannot run program "gpg": error=20, Not a directory See `lein help gpg` for how to set up gpg.
Being on a Mac I used to install gpg
#+BEGIN_EXAMPLE brew install gpg brew insall gpg-agent #+END_EXAMPLE
Some other interesting links found related gpg and releasing to Clojars