TeeChart 4.0 PROBLEM

I use Delphi 4 and TeeChart 4.0.

Then I make a simple program can I trace (F7) it in Delphi without
problems. If i place a DBChart on the form and try to trace it I got
the message unable to locate file TeCanvas.pas. How can I solve this
trace  problem?

Where can I get the TeCanvas.pas file?