new-object: 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/new-object - from package: gnome-libs

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

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