Invalid XAML error updating from WP7

Mon, 04 Aug 2014 00:00:00 +0000

We are now seeing the beginning of the fast decline of Windows Phone 7 as it exits the market over the next several months, many of you will need to act to update your app to at least Windows Phone 8. I did this for all of my WP7 apps and there was one error that was In just about every upgrade:

An error on this XAML namespace declaration:

xmlns:controls="clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone.Controls"

```Previous to Windows Phone 8, the Pivot and Panorama controls were part of a toolkit. The Windows Phone team did a solid by included these in the OS, they also added new controls like the LongListSelector to replace the toolkit's ListPicker . These controls are now found in the Phone namespace.

It's a very frustrating problem if you're seeing it for the first time. Don't worry, there is a really easy fix... Delete the xmlns:controls line and use only the xmlns:phone one or edit it and remove the ".Contols" part of the assembly pointer. Here is what it will look like after doing the edit option:

xmlns:controls=“clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone”

Invalid Code on DVLUP

Invalid XAML error updating from WP7