sbuild-abort: 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/bin/sbuild-abort - from package: sbuild

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