xmlparse: 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/xmlparse - from package: gnustep-base

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

On Debian possible default full paths are:

/usr/bin/xmlparse - from package: gnustep-base-runtime

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

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