remuco-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/bin/remuco-mpd - from package: remuco-mpd

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

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