I try to create a new webb site using VS 2010 and .Net Framework 4.0, I wanted it to be a copy of an exsisting .Net Framework 3.5 based site, so I copied the aspx page code and the codebehind code from the old version when I created the new one, but now I get these errors...
is not declared. It may be inaccessible due to its protection level.
It seem I get this error on every control I have on the page, why is that and how do I fix it?
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