uclean: command not found

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/uclean - from package: svn-buildpackage

You may install the required package with command apt-get install {package}

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