Top "Unresolved-external" questions

For questions about code that compiles but does not link due to unresolved external symbols.

What is an undefined reference/unresolved external symbol error and how do I fix it?

What are undefined reference/unresolved external symbol errors? What are common causes and how to fix/prevent them? Feel free …

c++ linker-errors undefined-reference c++-faq unresolved-external
Unresolved external symbol in object files

During coding in Visual Studio I got an unresolved external symbol error and I've got no idea what to do. …

c++ visual-studio visual-c++ unresolved-external
unresolved external symbol __imp__fprintf and __imp____iob_func, SDL2

Could someone explain what the __imp__fprintf and __imp____iob_func unresolved external means? Because I get these errors when …

c++ sdl-2 visual-studio-2015 unresolved-external
How to solve error LNK2019

I am sending a simple email in C++. I downloaded a sample C++ program from the below link. http://cboard.…

c++ linker unresolved-external lnk2019
Unresolved external symbol LNK2019

First of all, I know this question is all over this site but I have looked at almost all of …

c++ visual-studio linker linker-errors unresolved-external
Unresolved symbols when linking a program using libcurl

I know this is programming questions but I'm just frustrated trying to figure out what I'm doing wrong.. I'm using …

c visual-studio curl unresolved-external
Unresolved external symbols - Qt creator

I must be missing a basic concept with headers and includes because when I attempt to call even the simplest …

c++ qt unresolved-external
OpenCV won't compile due to unresolved externals -- LNK2019

I am brand new to OpenCV and have been trying to set it up in Visual Studios 2010 Ultimate. I have …

c++ visual-studio-2010 opencv unresolved-external lnk2019
error LNK2019 unresolved external symbol

I am quite new to C++ so I downloaded a sample C++ program. The sample program seems to hit the …

c++ symbols unresolved-external lnk2019
'LIBCMT' conflicts with use of other libs + unresolved external symbols

I have a program using OpenGL 3.2(+libs) and FreeType2. Then an other program with Boost and OpenSSL. The OpenGL side …

c++ visual-studio-2010 linker-errors unresolved-external linker-warning