are you missing a using directive or an assembly reference?

Hi, my friend wrote some code using class library. He wrote Windows Application class with Form1 and other classes are in called "LogParserApp" namespace. When he did the codes works fine but If I want to copy exactly what he did that call object in the form1 from LogParserApp namespace, I add reference from project tab, and add "using LogParserApp" on the top of the Form1. But I get run-time error as "The type of namespace name 'SummaryEntry' could not be found (are you missing a using directive or an assembly reference?).

Can anyone help this matter?

Thank you.

[615 byte] By [KentaroM] at [2007-12-26]