MkOneOf: 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/MkOneOf - from package: haxml

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

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