Error Lnk2019 Unresolved External Symbol In Function
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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 error lnk2019 unresolved external symbol winmain@16 referenced in function ___tmaincrtstartup About Us Learn more about Stack Overflow the company Business Learn more error lnk2019 unresolved external symbol public __thiscall referenced in function _main about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss error lnk2019 unresolved external symbol main referenced in function __tmaincrtstartup 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 error LNK2019: unresolved
Error Lnk2019 Unresolved External Symbol Public Void __thiscall Referenced In Function
external symbol “” referenced in function up vote 2 down vote favorite Im currently getting the following error when I compile my code: error LNK2019: unresolved external symbol "public: void __thiscall Agent::printSelf(void)" (?printSelf@Agent@@QAEXXZ) referenced in function "public: void __thiscall World::processMouse(int,int,int,int)" (?processMouse@World@@QAEXHHHH@Z) World.obj Here is my code Agent.h: class Agent { public: Agent(); void printSelf(); Agent.cpp: void Agent::printSelf() { printf("Agent species=%i\n", species); for (int i=0;i 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 c++ error lnk2019 unresolved external symbol Us Learn more about Stack Overflow the company 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 What is an undefined reference/unresolved external symbol http://stackoverflow.com/questions/17035217/error-lnk2019-unresolved-external-symbol-referenced-in-function error and how do I fix it? up vote 709 down vote favorite 316 What are undefined reference/unresolved external symbol errors? What are common causes and how to fix/prevent them? Feel free to edit/add your own. c++ linker-error undefined-reference c++-faq unresolved-external share|improve this question edited Aug 4 '14 at 13:33 Arno Duvenhage 805517 asked Sep 24 '12 at 22:27 Luchian Grigore 167k28295455 3 One thing http://stackoverflow.com/questions/12573816/what-is-an-undefined-reference-unresolved-external-symbol-error-and-how-do-i-fix to consider adding is how to deal with "undefined vtable" and "undefined typeinfo" errors in particular (since they are less obvious than undefined functions or variables). –Jeremiah Willcock Jul 16 '13 at 18:25 1 I've been marking this question to be a possible dupe of this one. But after going through all of your (brilliant) answers, I can't see this case covered here. I'm aware it's specific about how an IDE sets up the project type and it's linkage dependencies. But that's a such frequently asked question I think it would be worth covered (maybe just with a link to another appropriate dupe) here. If it is already, and I just didn't spot it, forget about this request/comment. –πάντα ῥεῖ Mar 3 '14 at 21:14 @LuchianGrigore 'feel free to add an answer' I preferred to add the relevant link (IMHO) your primary answer, if you'd like to permit. –πάντα ῥεῖ Mar 3 '14 at 22:36 Pretty common mistake is that you define a function as a standalone and forget the class selector (e.g. A::) in your .cpp file: You do this (wrong): void myFunc() { /* do stuff */ } Instead of 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 http://stackoverflow.com/questions/7528937/unresolved-external-symbol-referenced-in-function the company 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 Unresolved external symbol referenced in function up vote 2 down vote favorite I realize this is a error lnk2019 hard one to answer without providing you with huge amounts of code (which I'll try to spare you). Essentially i'm getting this error in class X, which #includes the class Y header. The class Y header has three definitions for getters // Getters static ID3D10Device* PDevice(); static ID3D10Buffer* PBuffer(); static ID3D10Buffer* IBuffer(); I get three identical errors, all occur in class X. so essentially the error is: Unresolved external symbol ID3D10Device* PDevice() error lnk2019 unresolved referenced in function (constructor of class X) sorry if that's a bit vague. Any idea why this might be happening? I've googled it but I can only really make an educated guess as to what this error is. c++ share|improve this question edited Dec 10 '13 at 7:00 paqogomez 11.4k42444 asked Sep 23 '11 at 12:29 SirYakalot 2,72463768 3 That's a linker error, not a compiler error. Are you linking against the D3D libraries correctly? –Kerrek SB Sep 23 '11 at 12:31 Do you compile definitions of those functions at all? –mloskot Sep 23 '11 at 12:32 yes and yes. All this code worked before, but now I've split it up into separate classes I'm having some problems. –SirYakalot Sep 23 '11 at 12:37 add a comment| 3 Answers 3 active oldest votes up vote 5 down vote accepted First of all this is a linker error. This linker error means that the mangled name PDevice et al is not found. Can you make sure that you have an implementation of a function that matches the definition? Also, maybe obvious but just check that you actualy have an implementation. If your implementation is in an external lib, be sure you have included the other lib in your Error Lnk2019 Unresolved External Symbol Visual Studio 2010
Error Lnk2019 Unresolved External Symbol Void __cdecl