eggdbus-glib-genmarshal: 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/eggdbus-glib-genmarshal - from package: eggdbus-devel

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