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

I have recently encountered this Error. As @samiz mentioned above, First of all, you need to delete all *.dll.Refresh after that build and publish your website. However, sometimes, as happen for me, when you have deleted *.dll.refresh, then publish your website, Error reminds as usual. I have done a lot of tests, but nothing changes.

I also create a new folder and copy all *.dlls which I need for my website. Next, delete all *.dll inside Bin folder then add them by one.

Finally, I re-start My PC, and then I try to publish my website. Believe me or not, it works fine and no error occurred.