wsdl2dispatch: 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 CentOS possible default full paths are:

/usr/bin/wsdl2dispatch - from package: python-ZSI

You may install the required package with command yum install {package}
Error in other languages:
wsdl2dispatch: bevel nie gevind nie
wsdl2dispatch: comandă negăsită
wsdl2dispatch: comando não encontrado
wsdl2dispatch: commande introuvable
wsdl2dispatch: command not found
wsdl2dispatch: käsku ei ole
wsdl2dispatch: không tìm thấy lệnh
wsdl2dispatch: komanda nerasta
wsdl2dispatch: Kommando nicht gefunden.
wsdl2dispatch: kommandot finns inte
wsdl2dispatch: komut yok
wsdl2dispatch: nie znaleziono polecenia
wsdl2dispatch: níor aimsíodh an t-ordú
wsdl2dispatch: no se encontró la orden
wsdl2dispatch: no s'ha trobat l'ordre
wsdl2dispatch: opdracht niet gevonden
wsdl2dispatch: parancs nem található
wsdl2dispatch: perintah tidak ditemukan
wsdl2dispatch: príkaz nenájdený
wsdl2dispatch: příkaz nenalezen
wsdl2dispatch: команда не найдена
wsdl2dispatch: командата не е открита
wsdl2dispatch: 命令找不到
wsdl2dispatch: コマンドが見つかりません