SFML Link Error

[Ophi]

Hello. I'm just starting to learn the SFML library for use in C++ in VSE 12.

/* Main.cpp */
#include "Header.h"

int main(void){
	sf::Window window;
	window.create(sf::VideoMode(1280, 720), "My window");

	sf::Font font;
	if (!font.loadFromFile("arial.ttf")){}

	sf::Text text;

	text.setFont(font);
	text.setString("Hello world");
	text.setCharacterSize(24);
	text.setColor(sf::Color::Red);
	text.setStyle(sf::Text::Bold | sf::Text::Underlined);

	while(window.isOpen()){
		if(sf::Keyboard::isKeyPressed(sf::Keyboard::Escape)){
			window.close();
		}
	}

	return 0;
}

/*  Header.h */
#pragma once

#include <SFML\System.hpp>
#include <SFML\Window.hpp>
#include <SFML\Graphics.hpp>
#include <SFML\Graphics\Color.hpp>

1>------ Build started: Project: RPG-C-VS, Configuration: Debug Win32 ------
1>Main.obj : error LNK2001: unresolved external symbol "public: static class sf::Color const sf::Color::Red" (?Red@Color@sf@@2V12@B)
1>Z:\Storage\Code\Projects\RPG\RPG-C-VS\Debug\RPG-C-VS.exe : fatal error LNK1120: 1 unresolved externals
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

As far as I can tell I am getting an error related to the use of the Color class. I figured the inclusion of Color.hpp would fix this but it has not.

I thank you in advance for all and any help. :)

[shadowmouse]

Firstly, there's no need to include Color.hpp, nor for that matter System or Window as Graphics includes them all. What did you link to? I would advise setting up a new project with SFML as this is often easier than hunting down small mistakes in linking. Also tags use [ and ] not < and >,

[Ophi]

Thanks for the advice.

Debug Dependencies:

sfml-system-d.lib
sfml-graphics-d.lib
sfml-window-d.lib
opengl32.lib
freetype.lib
jpeg.lib
winmm.lib
gdi32.lib

Release Dependencies:

sfml-system-s.lib
sfml-graphics-s.lib
sfml-window-s.lib
opengl32.lib
freetype.lib
jpeg.lib
winmm.lib
gdi32.lib

I hope that is what you were asking for. The code I originally posted is the only code currently in my project. I wrote it up for testing purposes to make sure everything was working properly.

[shadowmouse]

Linking order usually matters for this sort of thing. Try linking graphics then window then system.

[Ophi]

After changing the link order the original error remains.

Perhaps I don't have the correct .dll files where they need to be. I can not say for myself if that would be the cause, however.

[shadowmouse]

You need to put -s-d for the debug configuration. Also, did you define SFML_STATIC?

[Ophi]

Changing the debug configuration as said causes more errors.

1> Build started: Project: RPG-C-VS, Configuration: Debug Win32
1>  Main.cpp
1>sfml-graphics-s-d.lib(Transformable.cpp.obj) : error LNK2038: mismatch detected for '_MSC_VER': value '1800' doesn't match value '1700' in Main.obj
1>sfml-graphics-s-d.lib(Font.cpp.obj) : error LNK2038: mismatch detected for '_MSC_VER': value '1800' doesn't match value '1700' in Main.obj
1>sfml-graphics-s-d.lib(Text.cpp.obj) : error LNK2038: mismatch detected for '_MSC_VER': value '1800' doesn't match value '1700' in Main.obj
1>sfml-graphics-s-d.lib(Color.cpp.obj) : error LNK2038: mismatch detected for '_MSC_VER': value '1800' doesn't match value '1700' in Main.obj
1>sfml-graphics-s-d.lib(Transform.cpp.obj) : error LNK2038: mismatch detected for '_MSC_VER': value '1800' doesn't match value '1700' in Main.obj
1>sfml-graphics-s-d.lib(Image.cpp.obj) : error LNK2038: mismatch detected for '_MSC_VER': value '1800' doesn't match value '1700' in Main.obj
1>sfml-graphics-s-d.lib(Texture.cpp.obj) : error LNK2038: mismatch detected for '_MSC_VER': value '1800' doesn't match value '1700' in Main.obj
1>sfml-graphics-s-d.lib(GLCheck.cpp.obj) : error LNK2038: mismatch detected for '_MSC_VER': value '1800' doesn't match value '1700' in Main.obj
1>sfml-graphics-s-d.lib(VertexArray.cpp.obj) : error LNK2038: mismatch detected for '_MSC_VER': value '1800' doesn't match value '1700' in Main.obj
1>sfml-graphics-s-d.lib(RenderTarget.cpp.obj) : error LNK2038: mismatch detected for '_MSC_VER': value '1800' doesn't match value '1700' in Main.obj
1>sfml-graphics-s-d.lib(ImageLoader.cpp.obj) : error LNK2038: mismatch detected for '_MSC_VER': value '1800' doesn't match value '1700' in Main.obj
1>sfml-graphics-s-d.lib(GLExtensions.cpp.obj) : error LNK2038: mismatch detected for '_MSC_VER': value '1800' doesn't match value '1700' in Main.obj
1>sfml-graphics-s-d.lib(TextureSaver.cpp.obj) : error LNK2038: mismatch detected for '_MSC_VER': value '1800' doesn't match value '1700' in Main.obj
1>sfml-graphics-s-d.lib(GLLoader.cpp.obj) : error LNK2038: mismatch detected for '_MSC_VER': value '1800' doesn't match value '1700' in Main.obj
1>sfml-graphics-s-d.lib(View.cpp.obj) : error LNK2038: mismatch detected for '_MSC_VER': value '1800' doesn't match value '1700' in Main.obj
1>sfml-graphics-s-d.lib(Shader.cpp.obj) : error LNK2038: mismatch detected for '_MSC_VER': value '1800' doesn't match value '1700' in Main.obj
1>sfml-window-s-d.lib(VideoMode.cpp.obj) : error LNK2038: mismatch detected for '_MSC_VER': value '1800' doesn't match value '1700' in Main.obj
1>sfml-window-s-d.lib(Window.cpp.obj) : error LNK2038: mismatch detected for '_MSC_VER': value '1800' doesn't match value '1700' in Main.obj
1>sfml-window-s-d.lib(InputImpl.cpp.obj) : error LNK2038: mismatch detected for '_MSC_VER': value '1800' doesn't match value '1700' in Main.obj
1>sfml-window-s-d.lib(VideoModeImpl.cpp.obj) : error LNK2038: mismatch detected for '_MSC_VER': value '1800' doesn't match value '1700' in Main.obj
1>sfml-window-s-d.lib(GlContext.cpp.obj) : error LNK2038: mismatch detected for '_MSC_VER': value '1800' doesn't match value '1700' in Main.obj
1>sfml-window-s-d.lib(WindowImpl.cpp.obj) : error LNK2038: mismatch detected for '_MSC_VER': value '1800' doesn't match value '1700' in Main.obj
1>sfml-window-s-d.lib(WglContext.cpp.obj) : error LNK2038: mismatch detected for '_MSC_VER': value '1800' doesn't match value '1700' in Main.obj
1>sfml-window-s-d.lib(JoystickManager.cpp.obj) : error LNK2038: mismatch detected for '_MSC_VER': value '1800' doesn't match value '1700' in Main.obj
1>sfml-window-s-d.lib(SensorManager.cpp.obj) : error LNK2038: mismatch detected for '_MSC_VER': value '1800' doesn't match value '1700' in Main.obj
1>sfml-window-s-d.lib(WindowImplWin32.cpp.obj) : error LNK2038: mismatch detected for '_MSC_VER': value '1800' doesn't match value '1700' in Main.obj
1>sfml-window-s-d.lib(WglExtensions.cpp.obj) : error LNK2038: mismatch detected for '_MSC_VER': value '1800' doesn't match value '1700' in Main.obj
1>sfml-window-s-d.lib(Joystick.cpp.obj) : error LNK2038: mismatch detected for '_MSC_VER': value '1800' doesn't match value '1700' in Main.obj
1>sfml-window-s-d.lib(JoystickImpl.cpp.obj) : error LNK2038: mismatch detected for '_MSC_VER': value '1800' doesn't match value '1700' in Main.obj
1>sfml-system-s-d.lib(String.cpp.obj) : error LNK2038: mismatch detected for '_MSC_VER': value '1800' doesn't match value '1700' in Main.obj
1>sfml-system-s-d.lib(Err.cpp.obj) : error LNK2038: mismatch detected for '_MSC_VER': value '1800' doesn't match value '1700' in Main.obj
1>sfml-system-s-d.lib(ThreadLocal.cpp.obj) : error LNK2038: mismatch detected for '_MSC_VER': value '1800' doesn't match value '1700' in Main.obj
1>sfml-graphics-s-d.lib(Shader.cpp.obj) : error LNK2019: unresolved external symbol "__declspec(dllimport) public: __thiscall std::ios_base::operator bool(void)const " (__imp_??Bios_base@std@@QBE_NXZ) referenced in function "bool __cdecl `anonymous namespace'::getFileContents(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &,class std::vector<char,class std::allocator<char> > &)" (?getFileContents@?A0xa379d511@@YA_NABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@AAV?$vector@DV?$allocator@D@std@@@3@@Z)
1>sfml-system-s-d.lib(Time.cpp.obj) : error LNK2019: unresolved external symbol __ftol3 referenced in function "class sf::Time __cdecl sf::seconds(float)" (?seconds@sf@@YA?AVTime@1@M@Z)
1>sfml-system-s-d.lib(Time.cpp.obj) : error LNK2019: unresolved external symbol __ltod3 referenced in function "public: float __thiscall sf::Time::asSeconds(void)const " (?asSeconds@Time@sf@@QBEMXZ)
1>Z:\Storage\Code\Projects\RPG\RPG-C-VS\Debug\RPG-C-VS.exe : fatal error LNK1120: 3 unresolved externals
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

I defined SFML_STATIC by method of the 'Preprocessor' settings under 'C/C++.'

[shadowmouse]

Okay sorry if I can't help more, I've told you all the things I can think of (did you try just making a new project?). I'd advise going over to the sfml website and posting those errors. The people who actually made it are there so they'll be the best at helping you.

[Ophi]

No problem. I appreciate the help you have provided up to this point. I will be sure to come back to this thread with an update on this problems resolution.

[Ophi]

I was pointed in the correct direction on the SFML forums. Apparently I needed to link dynamically in my situation, which involved no suffix on the release builds, and only '-d' on the debug builds. In addition I had to get rid of SFML_STATIC.

Thanks for all the help! :)