qmleasing: 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 CentOS possible default full paths are:

/usr/bin/qmleasing - from package: qt5-qtdeclarative-devel
/usr/lib64/qt5/bin/qmleasing - from package: qt5-qtdeclarative-devel
/usr/lib/qt5/bin/qmleasing - from package: qt5-qtdeclarative-devel

You may install the required package with command yum install {package}

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