title: Delphi Error E1026 File not found: "myprojectname.tlb"
body: <p>I have a project let's call it Yellow.dproj, which I saved as Blue.dproj, to make some changes.  There must be some COM/DCOM related code in this project, but I can't figure out where.</p>
  
  <p>The error I am getting when I try to build Yellow.dproj is that it can not find a type library (TLB) file:  "E1026 File not found: ".  The file it can't find is MyAppName.tlb.  There is a MyAppName_tlb.pas file, which I have tried adding and removing from the project, either way I get this error.</p>
  
  <p>I think I probably have to go into that TLB file, which I don't really understand, and rename a bunch of junk in there, because it is dependant on the name of my application.  This is something that happens to you, I suspect, when you use COM/DCOM and type libraries in Delphi (Delphi 2010). You can't just rename or save-as and build a new project again. </p>
  
  <p>What do I do to fix this unit up?</p>