CuraEngine: 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/CuraEngine - from package: cura-engine

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

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