Web.config Custom Errors mode Conflict

Question

I have a great and important problem with Web.Config, I need to see the Error of my page and resolve it in asp.net web form and web config, but when Error Occurred, I see an

Answer 1

Many hosting companies actually override the settings from your web.config file by theirs. You can usually set these concrete attributes in the web host's dashboard for the website.

If you tell us the concrete web hosting you are using, we should be able to assist better with concrete steps.