ssh problem

I create my ssh keys by using Git Bash.exe and i copy the ssh file ,and ssh public keys file from my document and past them in authorized_keys folder in ssh folder in the config folder

i use deprec and capistrano to depoly my rails application but when i write " cap deprec:ssh:setup_keys " and then give the ssh public key (ssh.pub) this message display                                       " Could not find ssh public key(s) for user mahmoud

                                          Please create file containing ssh public keys in:

                                               config/ssh/ authorized_keys/ssh.pub "

how can i solve this problem?