kmk_cp: 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 CentOS possible default full paths are:

/usr/bin/kmk_cp - from package: kBuild

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/bin/kmk_cp - from package: kBuild

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

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