swift-recon-cron: 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/swift-recon-cron - from package: swift-object

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