We are working on a custom web form for SharePoint 2013. It is a visual web part and have a form which have several telerik controls. It is a big form. Earlier we developed it in Visual Studio 2012 and now we are working Visual Studio 2013. Now issue is, It is not generating designer file i.e. ascx.g.cs and giving error on every build. When we checked designer file, it is empty. We tried every possible solutions but not able to generate designer file and Visual Studio hangs if we open ascx file in design mode.
Please help immediately.