HELP! - "The WSIntranet, Version=1.0.0.0, Culture=neutral, PublicKeyToken=24410d33c1a2222e assembly

[Mike]

Hi,

I am just building my first webpart.

It worked fine when I just had output.write("hello").

As soon as I try and do this:

SPWeb currentSite = SPControl.GetContextWeb(this.Context);
output.Write(currentSite.Webs.Names.ToString());

I get:

"The WSIntranet, Version=1.0.0.0, Culture=neutral,
PublicKeyToken=24410d33c1a2222e assembly specified in a Register
directive of this page could not be found"

please help....run out of ideas