Server start error in elixir phoenix application

mix
phoenix

#1

When i start the server mix phoenix.server I am getting this error. Please let me know what error is this??

[info] Application jose exited: exited in: :jose_app.start(:normal, [])
** (EXIT) an exception was raised:
** (UndefinedFunctionError) function :jose_app.start/2 is undefined (module :jose_app is not available)
(jose) :jose_app.start(:normal, [])
(kernel) application_master.erl:273: :application_master.start_it_old/4
[info] Application base64url exited: :stopped
[info] Application elixir_make exited: :stopped
[info] Application httpoison exited: :stopped
[info] Application hackney exited: :stopped
[info] Application metrics exited: :stopped
[info] Application ssl_verify_fun exited: :stopped
[info] Application certifi exited: :stopped
[info] Application mimerl exited: :stopped
[info] Application idna exited: :stopped
[info] Application unicode_util_compat exited: :stopped
[info] Application comeonin exited: :stopped
[info] Application ex_phone_number exited: :stopped
[info] Application mongodb exited: :stopped
[info] Application db_connection exited: :stopped
[info] Application connection exited: :stopped
[info] Application phoenix_ecto exited: :stopped
[info] Application ecto exited: :stopped
[info] Application poolboy exited: :stopped
[info] Application decimal exited: :stopped
[info] Application cowboy exited: :stopped
[info] Application cowlib exited: :stopped
[info] Application ranch exited: :stopped
[info] Application phoenix_html exited: :stopped
[info] Application phoenix_pubsub exited: :stopped


#2

Which version of Phoenix are You using?

mix phoenix.server is the old Phoenix 1.2

Now You should use mix phx.server