gtk-query-immodules-2.0-64: 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/gtk-query-immodules-2.0-64 - from package: gtk2

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

Error in other languages:
gtk-query-immodules-2.0-64: bevel nie gevind nie
gtk-query-immodules-2.0-64: comandă negăsită
gtk-query-immodules-2.0-64: comando não encontrado
gtk-query-immodules-2.0-64: commande introuvable
gtk-query-immodules-2.0-64: command not found
gtk-query-immodules-2.0-64: käsku ei ole
gtk-query-immodules-2.0-64: không tìm thấy lệnh
gtk-query-immodules-2.0-64: komanda nerasta
gtk-query-immodules-2.0-64: Kommando nicht gefunden.
gtk-query-immodules-2.0-64: kommandot finns inte
gtk-query-immodules-2.0-64: komut yok
gtk-query-immodules-2.0-64: nie znaleziono polecenia
gtk-query-immodules-2.0-64: níor aimsíodh an t-ordú
gtk-query-immodules-2.0-64: no se encontró la orden
gtk-query-immodules-2.0-64: no s'ha trobat l'ordre
gtk-query-immodules-2.0-64: opdracht niet gevonden
gtk-query-immodules-2.0-64: parancs nem található
gtk-query-immodules-2.0-64: perintah tidak ditemukan
gtk-query-immodules-2.0-64: príkaz nenájdený
gtk-query-immodules-2.0-64: příkaz nenalezen
gtk-query-immodules-2.0-64: команда не найдена
gtk-query-immodules-2.0-64: командата не е открита
gtk-query-immodules-2.0-64: 命令找不到
gtk-query-immodules-2.0-64: コマンドが見つかりません