ui-gxmlcpp-version: 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 Debian possible default full paths are:

/usr/bin/ui-gxmlcpp-version - from package: libui-gxmlcpp-dev

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

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