format NotAChefServerException nicely

Signed-off-by: Jose Asuncion <jeunito@gmail.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/lib/chef/knife.rb b/lib/chef/knife.rb
index aa30f2e2ed..46d315aacf 100644
--- a/lib/chef/knife.rb
+++ b/lib/chef/knife.rb
@@ -474,6 +474,8 @@ class Chef
       when Chef::Exceptions::InvalidRedirect
         ui.error "Invalid Redirect: #{e.message}"
         ui.info  "Change your server location in knife.rb to the server's FQDN to avoid unwanted redirections."
+      when Chef::Exceptions::NotAChefServerException
+        ui.error "Argument Error: #{Chef::Config[:chef_server_url]} is not a valid chef server"
       else
         ui.error "#{e.class.name}: #{e.message}"
       end