build-release.sh: 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/share/simplesamlphp/bin/build-release.sh - from package: simplesamlphp

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

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