make_wagon_desc: 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/make_wagon_desc - from package: speech-tools

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

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