right now i'm generate pdf using wkhtmltopdf gem.In development it is working fine. if i'm run my project in production i got this error.already i'm install these two gems "wkhtmltopdf" & "wkhtmltopdf_binary".please help me.
RuntimeError (Failed to execute: "/usr/local/rvm/gems/ruby-1.9.2-p290/bin/wkhtmltopdf" -q - - Error: PDF could not be generated!):