builder-c++: 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/builder-c++ - from package: pentium-builder

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

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