How to solve Unresolved External Symbols?

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I got error messages:

VB

SampleDLL.obj : error LNK2001: unresolved external symbol _DetourDetach@8
SampleDLL.obj : error LNK2001: unresolved external symbol _DetourTransactionCommit@0
SampleDLL.obj : error LNK2001: unresolved external symbol _DetourAttach@8
SampleDLL.obj : error LNK2001: unresolved external symbol _DetourUpdateThread@4
SampleDLL.obj : error LNK2001: unresolved external symbol _DetourTransactionBegin@0

I am using Detour Express 2.1. I build the contents. Then, I copied the detours.h to VC98\include folder, detours.lib to VC98\lib folder.
Then on my code: #include "detours.h". Then still won't build successfully. Can someone help me with the correct steps on dealing the detours? Please....thanks a lot. I know, I've done something wrong. Please enumerate briefly the steps if you can provide.
And to be sure, I also added the .lib & .h to my debug folder. Still got errors.

Posted 14-Sep-10 1:01am

this_is_my_alias

Updated 14-Sep-10 1:02am

v2

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Niklas L · Answer 1 · 2010-09-14T05:20:00

Solution 3

You could Drag&Drop the lib file to your project. (not just add it to the debug directory, because that will not tell the linker to use it)

Posted 14-Sep-10 5:20am

Niklas L

#realJSOP · Answer 2 · 2010-09-14T01:29:00

Solution 1

You forgot to actually link the lib file to your project.

Posted 14-Sep-10 1:29am

#realJSOP

Comments

this_is_my_alias 14-Sep-10 7:37am

Okay.....I'll just take the opportunity...HOW?????

Emilio Garavaglia · Answer 3 · 2010-09-14T04:09:00

Solution 2

Check the VC settings, if the LIB search also include the directory containing your LIB file.

Also, configure the Linker project settings to link the required library.

Posted 14-Sep-10 4:09am

Emilio Garavaglia