System.InvalidOperationException: Could not read Sitecore configuration

Question

I have installed sitecore, created website in iis(6.1) and then mapped properly to the physical folder. When i add a test file (default.aspx) and browse, file load up. But when i try to open content editor (eg: http://localhost:XXXX/sitecore), I see the error System.InvalidOperationException: Could not read Sitecore configuration

I'm guessing that, a small configuration is missing which is taking me through long go.

Can anyone help me on this?

Thanks in advance

Answer 1

Yes, as Patrick says, It was just an permission set to the proj folder. I have unchecked Read Only property of the folder.