After a code change I routinely get several messages "'controls_upload_ascx' is ambiguous in the namespace 'ASP'" when I attempt to compile and run my web site with the debugger. Clicking the Start Debugging again and these messages disappear, and I can run my test.
Obviously not a major problem as it's only an annoyance, but is there something in my code structure that I should look at. Presumably in my Web User Control "Upload.ascx".
FWIW, I am using VS2010, with ASP.Net 4.0.
Robert Barnes
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