To Deploy an app in Windows Embedded Standard SP3

[kmara]

To start with my dev environment is Windows 7, and I am using the example application "http://doc.qt.io/qt-5/qtquick-demos-clocks-example.html" to install in a device with Windows Embedded Standard as OS.

It works like charm in the windows 7 environment (clean environment) . But the same build in the windows embedded standard device opens a blank window .

I use the following in the dev environment :
Qt 5.4 .
MinGW for the build .

Can someone point out what I might be doing wrong ?
Thanks in advance.