Upgrade to 4.1 Error

I was recieving a OpenAccess Versioning Error.
I tried to do an assembly redirect but it had zero effect on the error. It seems that some other assembly was causing the reference problem. I have had no luck on getting fuslogvw to work on asp.net 4.x so it is hard to track what is going on. Next, I overwrote the dlls with the .net 4.1 versions. I read in the forum that you should overwrite the DLLs to do an manual installation. 

Now, I am receiving this error.

Cannot insert the value NULL into column 'show_in_navigation', table 'gryphon.dbo.sf_page_data'; column does not allow nulls. INSERT fails.

I set show_in_navigation to allow nulls and it seem works ok. However, I am not sure how stable this is going to be moving forward. 

Hello Jaime Weise,

Have you tried upgrading your project using our upgrade instructions instead? The value for show in navigation is boolean 0 or 1 , so  setting your column to allow nulls would stop the error from occurring, however there might be some issue with your project that has caused this in first place.

Regards,
Boyan Barnev
the Telerik team