This just in: A solution was found today for the “Object of type ‘System.Int32’ cannot be converted to type ‘System.Web.Security.Cryptography.Purpose’” YSOD exception detailed in this blog post.
The solution says to:
- Uninstall VS11 if you have it installed
- Uninstall .NET 4.5 (Multi-Targeting and the core one)
- Reinstall .NET 4 (yes, you need to)
DO NOT DO THIS! (I wish I knew this Monday!!! I searched for HOURS, hoping for a solution that would prevent me from uninstalling.)
I’ve been in Sitecore training for the past 3 days, and my trainer was notified in an email this afternoon that THEY HAVE FOUND A WORKAROUND:
Change value to false in web.config:
<setting name=”Login.RememberLastLoggedInUserName” value=”false” />
Because I uninstalled, I have not tried this yet, but wanted to get the word out as soon as I heard of this workaround. Please let me know if this works for you (or doesn’t).