swift-dispersion-populate: 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

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-dispersion-populate - from package: swift

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