Error Lnk2001 Visual Studio 2005
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here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss error lnk2001 unresolved external symbol c++ the workings and policies of this site About Us Learn more about error lnk2001 c++ Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow error lnk2001 unresolved external symbol in vc++ Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each https://msdn.microsoft.com/en-us/library/f6xx1b1z.aspx other. Join them; it only takes a minute: Sign up LNK2001 and LNK2019 error during VS2008 (or VS2010) upgrade from VS2005 up vote 1 down vote favorite I am attempting to upgrade an old VC6 solution to VS2010. Everything compiles fine (after a few code changes to handle some VC++ changes), but it refuses to link. I have 6 http://stackoverflow.com/questions/13125506/lnk2001-and-lnk2019-error-during-vs2008-or-vs2010-upgrade-from-vs2005 static libraries -- all set to "Use MFC in a Shared DLL" and "Not Using ATL" -- Unicode character set, and one Application (.EXE) set to "Use Standard Windows Libraries" and "Not Using ATL" (also Unicode, of course). This solution compiles/links fine using Visual Studio 2005 (SP1), but linking fails on both VS2008 and VS2010. The error messages are predominantly related to "CStringT". From everything I've researched, I should have seen these CStringT link errors in VS2005 also (that is when CString changed to template class), but as I said, it links fine in VS2005. I've tried every tip & trick that has been recommended here and elsewhere (i.e. explicitly importing the template class for CStringT in my stdafx.h header), but no luck. Anyone have any NEW ideas? I'll paste a sampling of the errors below for reference. Thanks! error LNK2001: unresolved external symbol "public: class ATL::CStringT
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company http://stackoverflow.com/questions/1031009/linker-error-2005-2001-in-visual-studio-2008 Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Linker error 2005, 2001 in Visual Studio 2008 up vote 0 down vote favorite I have a ATL COM project that was visual studio compiling fine in VC6 which gives the following linker errors when compiled in VS2008. error LNK2005: "void * __cdecl operator new(unsigned int)" (??2@YAPAXI@Z) already defined in libcmt.lib(new.obj) File: uafxcw.lib There are three more similar errors for delete, new[] and delete[]. I checked out several articles on the net and most of them say that its a conflict between CRT and MFC dlls. (Order in which they are picked up). One article suggests adding the visual studio error conflicting lib to the ignore lib list in project settings. Doing so, I am left with one error: error LNK2001: unresolved external symbol __afxForceEXCLUDE File:LMAN.Lib The error points to a lib that is referenced by this project (a lib developed by us). Any ideas on how to fix this? I am sure this would be a common problem for people doing migration to VS 2008. visual-studio visual-studio-2008 linker-error porting vc6 share|improve this question edited Aug 22 '15 at 17:53 JasonMArcher 6,22183744 asked Jun 23 '09 at 6:59 bobbyalex 1,60811739 add a comment| 1 Answer 1 active oldest votes up vote 1 down vote accepted Solved it. It was not required to exclude uafxcw.lib. Just had to ensure that the MFC dlls were not used. Our lib LMAN.lib was using Afxdisp.h (an MFC dll) which was not required. I removed the include from that project and then voila! - build succeeded. share|improve this answer answered Jun 23 '09 at 10:07 bobbyalex 1,60811739 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using Google Sign up using Facebook Sign up using Email and Password Post as a guest Name Email Post as a guest Name Email discard By posting your answer, you agree to the privacy policy and terms of service. Not the ans