ASP.Net error - type is not compatible with the type of control

Question

I have a web site i created using VS2012 web edition,

Running a VB.net asp web site,

In the VS2012 debug/release mode it compiles and everything works good,

Answer 1

Somehow the designer file and the markup file get out of sync, even if the types appear to match.

I changed the ID attribute of the problematic control, saved, and rebuilt in the markup file. I then changed it back to the original ID, saved, and rebuilt.

Problem goes away!

Answer 2

OK,

So after trying a lot of stuff that didnt work i found a solution, i dont like this solution but it works,

I went to the page.designer.vb file, and then looked for the 'html' and 'Head1' properties that were generated there,

In there i replaced their types to System.Web.UI.HtmlControls.HtmlGenericControl

Afterwards, it worked.

Weird bug, nothing else (including the "hot fixes" that are mentioned in other posts helped.

Hope this would help some one out there .

Answer 3

Weird issue it is I am not sure if there is a proper solution for this but what worked for me was simply changing the Control ID. and then designer.cs file was changed and all worked good.