fsc: 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/fsc - from package: scala

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

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