Hi
I am developing a .net website.I have planed to use login controls in the website.While i am trying to configure membership security tab i am getting an error as "Choose Data Source".I am getting this error in Visual Studio 2012 ultimate as well as Visual Studio 2013 Ultimate.Please help to resolve asap. OS:WINDOWS - 7 Ultimate 64 bitError Message Home Security Application Provider There is a problem with your selected data store. This can be caused by an invalid server name or credentials, or by insufficient permission. It can also be caused by the role manager feature not being enabled. Click the button below to be redirected to a page where you can choose a new data store. The following message may help in diagnosing the problem: Unable to connect to SQL Server database.