CODEWITHSUNDEEP
c++visual-studioclasslinkerdependencies
Raiden616
Raiden616

Reputation: 1564

Unresolved external symbol when including MFC object library

I have an object file library that exists as a standalone VC++ project. I have a number of other completely separate VC++ solutions, and I would like some of them to utilise the classes included in this library.

I have added the project to a solution as detailed here: (See docs). I have followed all of the instructions but am still getting "unresolved external symbol" errors when trying to use the class.

Can anyone help?

Specifics: The class library in question is an SQL access library. Inside there are two files, sql.h and sql.cpp. Pretty simple. That project compiles itself absolutely fine, so I know there is nothing wrong with that project. I was under the impression that to get the project included in an existing solution I had to:

That is what I have done, to no success.

Upvotes: 1

Views: 126

Answers (1)

AlexK
AlexK

Reputation: 1281

Please make sure the external library is linked into your project. It usually comes in a form of a .lib file (for example, sql.lib) Go to Configuration Properties ->Linker and add your library to the "Additional Dependencies" list.

Upvotes: 1

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