While working with the XNA Framework in Windows Phone 7 application, you might face an exception which says “Invalid Operation Exception” with a message “FrameworkDispatcher.Update has not been called”.

This exception generally occurs when you are working with the sound effects. In this post, we will discuss about this exception and the solution to fix it.

As declared in June, Nokia rolled out “Camera Extras” for Windows Phone 7.5 Lumia devices. To get this application, you must upgrade your phone OS to 7.10.8773.x which was released in US and China from 22nd June and all other countries during various time frame of July.

The Camera Extras includes “Smart Group Shots”, “Action Shots”, “Panorama” and “Self-Timer” showcased for Windows Phone 8. Continue reading to get more info and download link.