indigo-depict: 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/indigo-depict - from package: indigo-utils

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

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