swift-container-reconciler: 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-container-reconciler - from package: swift-container

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