qbs-config: 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/qbs-config - from package: qtcreator

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

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