TkAnt: 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/TkAnt - from package: antennavis

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

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