icmbuild: 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/icmbuild - from package: icmake

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

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