uchardet: 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/uchardet - from package: uchardet

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

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