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D4: using *.DCU without source?

Posted on 1998-10-25
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Last Modified: 2010-04-06
I have the following problem:
When I try to use a *.DCU without having the source code, the Delphi 4 compiler gives me the following error message:
"[Fatal error] File not found: 'F:\Delphi\Delphi4\Imports\MyUnit.pas'"

The same project compiles fine in Delphi 3, the path to the *.dcu is in the path for my project

Any ideas?
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Question by:Thesan
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Accepted Solution

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BlackMan earned 60 total points
ID: 1344332
You can't use D3 DCU's in D4! To use the unit, you need the sourcecode to be able to recompile it in D4. This applies to all versions of Delphi, DCU's are only valid for the version that has compiled them...
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Author Comment

by:Thesan
ID: 1344333
Oooops - sorry, I complete forgot that this question had been answered.

I'm not happy about the answer :-(( - but since it's apparently correct, it's an A after all. I shouldn't have assigned 60 points though :-))

Thanks!

btw: Does everybody agree that you cannot use any component without having the source code? What if you want to use your project in the next Delphi version??
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LVL 7

Expert Comment

by:BlackMan
ID: 1344334
When you use 3-part components, ALWAYS be sure to get the sourcecode, otherwise you'll face problems like you do now....
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