xbase64-config: 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/xbase64-config - from package: xbase-devel

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

Error in other languages:
xbase64-config: bevel nie gevind nie
xbase64-config: comandă negăsită
xbase64-config: comando não encontrado
xbase64-config: commande introuvable
xbase64-config: command not found
xbase64-config: käsku ei ole
xbase64-config: không tìm thấy lệnh
xbase64-config: komanda nerasta
xbase64-config: Kommando nicht gefunden.
xbase64-config: kommandot finns inte
xbase64-config: komut yok
xbase64-config: nie znaleziono polecenia
xbase64-config: níor aimsíodh an t-ordú
xbase64-config: no se encontró la orden
xbase64-config: no s'ha trobat l'ordre
xbase64-config: opdracht niet gevonden
xbase64-config: parancs nem található
xbase64-config: perintah tidak ditemukan
xbase64-config: príkaz nenájdený
xbase64-config: příkaz nenalezen
xbase64-config: команда не найдена
xbase64-config: командата не е открита
xbase64-config: 命令找不到
xbase64-config: コマンドが見つかりません