buildinfo: 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/lib/monodevelop/bin/buildinfo - from package: monodevelop

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