gnu.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/gnu.mpd - from package: mpc-ace

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

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