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

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

On Debian possible default full paths are:

/usr/bin/qmltestrunner - from package: qtchooser
/usr/lib/x86_64-linux-gnu/qt5/bin/qmltestrunner - from package: qtdeclarative5-dev-tools

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

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