I hope this helps you start testing your LightSwitch projects in the Visual Studio 2013 preview .I can’t tell you how important it is for us to find bugs sooner than later (especially upgrade issues ) so thank you for helping make LightSwitch the best it can be .Remember if you have any feedback , please visit the LightSwitch forum .If you know you ’ve found a bug , enter it directly into our bug database here : https://connect .microsoft . com /visualstudio