Can anyone help me out why I keep getting the following error below and provide any suggestion how to correct it. I added what it suggested and that caused more problems. My website still runs, however I think on some occasion this problem causes an issue preventing new uses from completing their profile account.
'System.Web.Security.MembershipUser' in assembly 'System.Web, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' has been forwarded to assembly 'System.Web.ApplicationServices'. Either a reference to 'System.Web.ApplicationServices' is missing from your project or the type 'System.Web.Security.MembershipUser' is missing from assembly 'System.Web.ApplicationServices'.
Another error I am getting is below as well.
'System.Web.UI.HtmlControls.HtmlGenericControl' cannot be converted to 'System.Web.UI.HtmlControls.HtmlTableRow'.
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