qs_generator: 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/qs_generator - from package: qtscript-tools

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

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