canplayer: 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/canplayer - from package: can-utils

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

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