xsubpp: 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 CentOS possible default full paths are:

/usr/bin/xsubpp - from package: perl-devel

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/bin/xsubpp - from package: libextutils-parsexs-perl
/usr/bin/xsubpp - from package: perl

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

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