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Editorial Team
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Asked: 2026-06-15T06:24:44+00:00

VC2012, I have a solution with many projects. I have made a Common project

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VC2012, I have a solution with many projects.
I have made a “Common” project that contains classes to be used from another projects (for general purpose).
Under “Common” I added a class named

“PreRequisitesManager” (cpp+h)

and interface

(PreRequisitesInterface).

On “Client” project (Added as dependency the “Common” project) I have class

ClientDlg

. the interface was added as needed and added a member of type

‘PreRequisitesManager’

.

The ClientDlg.h includes “PreRequisitesManager.h”
PreRequisitesManager includes the PreRequisitesInterface.h.

I am getting this:

GetCVClientDlg.obj : error LNK2019: unresolved external symbol
“public: __thiscall
CPreRequisitesManager::~CPreRequisitesManager(void)”
(??1CPreRequisitesManager@@QAE@XZ) referenced in function
__unwindfunclet$??0CGetCVClientDlg@@QAE@PAVCWnd@@@Z$0 GetCVClientDlg.obj : error LNK2019: unresolved external symbol
“public: __thiscall
CPreRequisitesManager::CPreRequisitesManager(void)”
(??0CPreRequisitesManager@@QAE@XZ) referenced in function “public:
__thiscall CGetCVClientDlg::CGetCVClientDlg(class CWnd *)” (??0CGetCVClientDlg@@QAE@PAVCWnd@@@Z) .

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1 Answer

  1. Editorial Team

    Fixed.

    the problem was the project was compiled as EXE and not as DLL.

    Thanks for help.

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