vxtest.mpd: 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/lib/ace/bin/MakeProjectCreator/templates/vxtest.mpd - from package: mpc-ace

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

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