mcrl2compilerewriter: 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/mcrl2compilerewriter - from package: mcrl2

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

Error in other languages:
mcrl2compilerewriter: bevel nie gevind nie
mcrl2compilerewriter: comandă negăsită
mcrl2compilerewriter: comando não encontrado
mcrl2compilerewriter: commande introuvable
mcrl2compilerewriter: command not found
mcrl2compilerewriter: käsku ei ole
mcrl2compilerewriter: không tìm thấy lệnh
mcrl2compilerewriter: komanda nerasta
mcrl2compilerewriter: Kommando nicht gefunden.
mcrl2compilerewriter: kommandot finns inte
mcrl2compilerewriter: komut yok
mcrl2compilerewriter: nie znaleziono polecenia
mcrl2compilerewriter: níor aimsíodh an t-ordú
mcrl2compilerewriter: no se encontró la orden
mcrl2compilerewriter: no s'ha trobat l'ordre
mcrl2compilerewriter: opdracht niet gevonden
mcrl2compilerewriter: parancs nem található
mcrl2compilerewriter: perintah tidak ditemukan
mcrl2compilerewriter: príkaz nenájdený
mcrl2compilerewriter: příkaz nenalezen
mcrl2compilerewriter: команда не найдена
mcrl2compilerewriter: командата не е открита
mcrl2compilerewriter: 命令找不到
mcrl2compilerewriter: コマンドが見つかりません