Hello,

I am creating a website forum following the sample in Chapter 10, "Forums 
and Online Communities" of "ASP.NET Website Programming" (C# version). I 
am usng VS.NET.

I have done all the pages in Forums folder, they are almost work.

The problem is the Forums/Header.aspx, if I insert 
Controls\SiteHeader.aspx in Forums\Header.aspx as the sample solutions 
did, my program wouldn't run. the error message is:

_____________________________

The error occurred in: http://localhost/MyWeb/Forum/Default.aspx
Error Message: Parser Error: External component has thrown an exception.
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Stack Trace:
System.Web.HttpException: Parser Error: External component has thrown an 
exception. ---> System.Web.HttpException: External component has thrown 
an exception. ---> System.Web.HttpCompileException: External component 
has thrown an exception. at 
System.Web.Compilation.BaseCompiler.ThrowIfCompilerErrors(CompilerResults 
results, ......

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Can anyone help?

Thanks in advance.

Gordon