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Home/ Questions/Q 4022260
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Editorial Team
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Editorial Team
Asked: May 20, 20262026-05-20T10:27:11+00:00 2026-05-20T10:27:11+00:00

In Delphi 2009 there is a package, that was installed properly, and works. However

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In Delphi 2009 there is a package, that was installed properly, and works.

However when a code compiles it throws an error

error E2003: E2003 Undeclared identifier: 'TSomething'

Why and how to fix it? (include the .dcu? the .pas?)

The project is build without “build with runtime packages” option.

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  1. Editorial Team
    Editorial Team
    2026-05-20T10:27:12+00:00Added an answer on May 20, 2026 at 10:27 am

    You probably have forgotten to include the unit that contains the definition of TSomething. Being in a package doesn’t mean you don’t have to use the units explicitly.

    Another possibility is that TSomething is defined in the implementation part of a unit in which case it can’t be accessed from outside the unit.

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