How to Upgrade a Windows Phone 7.x App to Windows Phone 8 in Visual Studio 2012?

You might have already developed a Windows Phone 7.5 App and you wanted to utilize the Windows Phone 8 features in your Windows Phone App. In this case, you might be looking to upgrade your Windows Phone 7.x project to Windows Phone 8.

Before doing that upgrade, take the backup of the complete soucrecode and copy it to a different folder. This is because, once your upgrade your Windows Phone project 7.5 to Windows Phone 8, you cannot revert it back to Windows Phone 7.5.

How to Upgrade a Windows Phone 7.x App to Windows Phone 8 in Visual Studio 2012?

1. Launch Microsoft Visual Studio 2012 and open the existing Windows Phone 7.5 Project.

2. Right Click on the Project in the “Solution Explorer” and click “Upgrade to Windows Phone 8.0” from the context menu.

How to Upgrade a Windows Phone 7.x App to Windows Phone 8 in Visual Studio 2012?

3. This will display a confirmation dialog with the message

“You are about to upgrade this project to target Windows Phone OS 8.0.Please make a backup copy of the project files before proceeding because this action cannot be undone. Upgrading this project does not upgrade any referenced projects.”

How to Upgrade a Windows Phone 7.x App to Windows Phone 8 in Visual Studio 2012?

Click yes, since we have already taken the backup of the old project.

4. Now, your Windows Phone 7.x project should have been upgraded to Windows Phone 8 project. For a quick check, you can verify the AppManifest file where you will see some new options like Supported Resolutions, Tiles Images, Tile Template etc. and the capabilities tab will include the new features of the Windows Phone 8.

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