aapt: 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/aapt - from package: aapt

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