What is the purpose of the <None Include = "..."> lines in the .DPROJ file? Can I safely remove them?

Question

I have a Delphi project (2007) which, when I opened it, gave a very long delay (i.e. 2 full minutes) before the IDE became responsive.

I have other projects that are as big as this one, and there was no such delay. Finally, I looked into the .DPROJ file and found hundreds of entries like this:

<None Include="ModelSupport_MyProjectName\Unit1\default.txaPackage" />
<None Include="ModelSupport_MyProjectName\Unit2\default.txaPackage" />
<None Include="ModelSupport_MyProjectName\Unit3\default.txaPackage" />

I deleted all these lines and now the huge delay has disappeared.

So what is the purpose of these lines? Why did they create such a long delay? Have I done harm by deleting them? More generally, is there any good documentation on the .DPROJ format structure from Codegear / Embarcadero?

Answer 1

Together . , UML. , Together , , .

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.dproj - Microsoft msbuild, , , Delphi msbuild.

Answer 2

, IDE 2007 dproj, .. . , , * ss; -)