Running on AWS linux (us-east-1/ami-2f726546) leads to errors

[graven]

While installing Tomcat on us-east-1/ami-2f726546, I am getting the following error:

Mixlib::ShellOut::ShellCommandFailed

Expected process to exit with [0], but received '1'
---- Begin output of keytool -genkeypair -keystore "/etc/tomcat6/keystore.jks" -storepass "hDnehzw8dkNuQ6W_oCAr" -keypass "hDnehzw8dkNuQ6W_oCAr" -dname "cn=localhost" ----
STDOUT:
STDERR: /opt/chef/embedded/lib/ruby/gems/1.9.1/gems/mixlib-shellout-1.1.0/lib/mixlib/shellout.rb:179:in `getgrnam': can't find group for tomcat6 (ArgumentError)

[dieu]

@graven please check new version