sbuild-createchroot: command not found

Have You tried accessing the binary with the full path?

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/sbin/sbuild-createchroot - from package: sbuild

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