gen-ruby-trans-pkgs: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On Debian possible default full paths are:

/usr/bin/gen-ruby-trans-pkgs - from package: gem2deb

You may install the required package with command apt-get install {package}

Error in other languages:
gen-ruby-trans-pkgs: bevel nie gevind nie
gen-ruby-trans-pkgs: comandă negăsită
gen-ruby-trans-pkgs: comando não encontrado
gen-ruby-trans-pkgs: commande introuvable
gen-ruby-trans-pkgs: command not found
gen-ruby-trans-pkgs: käsku ei ole
gen-ruby-trans-pkgs: không tìm thấy lệnh
gen-ruby-trans-pkgs: komanda nerasta
gen-ruby-trans-pkgs: Kommando nicht gefunden.
gen-ruby-trans-pkgs: kommandot finns inte
gen-ruby-trans-pkgs: komut yok
gen-ruby-trans-pkgs: nie znaleziono polecenia
gen-ruby-trans-pkgs: níor aimsíodh an t-ordú
gen-ruby-trans-pkgs: no se encontró la orden
gen-ruby-trans-pkgs: no s'ha trobat l'ordre
gen-ruby-trans-pkgs: opdracht niet gevonden
gen-ruby-trans-pkgs: parancs nem található
gen-ruby-trans-pkgs: perintah tidak ditemukan
gen-ruby-trans-pkgs: príkaz nenájdený
gen-ruby-trans-pkgs: příkaz nenalezen
gen-ruby-trans-pkgs: команда не найдена
gen-ruby-trans-pkgs: командата не е открита
gen-ruby-trans-pkgs: 命令找不到
gen-ruby-trans-pkgs: コマンドが見つかりません