publishing asp.net website give “Object reference not set to an instance of an object.” error

Question

I am getting fed up with this error. I have search all over the web and tried every possible suggestion to this error I could find.

1. delete app_code, build, add fil

Answer 1

In my case, clearing cookies resolved the issue.

The StackTrace had mentioned some authorization and cookies thing. I opened the web application in InCognito mode (which do not persist cookie store) and found the app working.

Hope it helps somebody.