i am getting this error when i run your code in ubuntu

[DaivikDave]

/tmp/ccojDm13.o:Main.cpp:(.text+0xd2): undefined reference to IniFile::load(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)' /tmp/ccojDm13.o:Main.cpp:(.text+0x3f0): undefined reference to InputManager::Controller::Controller()'
/tmp/ccojDm13.o:Main.cpp:(.text+0x411): undefined reference to InputManager::Controller::mapKey(SDL_Scancode, InputButton)' /tmp/ccojDm13.o:Main.cpp:(.text+0x42b): undefined reference to InputManager::Controller::mapKey(SDL_Scancode, InputButton)'
/tmp/ccojDm13.o:Main.cpp:(.text+0x445): undefined reference to InputManager::Controller::mapKey(SDL_Scancode, InputButton)' /tmp/ccojDm13.o:Main.cpp:(.text+0x45f): undefined reference to InputManager::Controller::mapKey(SDL_Scancode, InputButton)'
/tmp/ccojDm13.o:Main.cpp:(.text+0x479): undefined reference to InputManager::Controller::mapKey(SDL_Scancode, InputButton)' /tmp/ccojDm13.o:Main.cpp:(.text+0x493): more undefined references to InputManager::Controller::mapKey(SDL_Scancode, InputButton)' follow
/tmp/ccojDm13.o:Main.cpp:(.text+0x4de): undefined reference to InputManager::addController(InputManager::Controller*)' /tmp/ccojDm13.o:Main.cpp:(.text+0x68a): undefined reference to SDL_Init'
/tmp/ccojDm13.o:Main.cpp:(.text+0x6b7): undefined reference to Mix_Init' /tmp/ccojDm13.o:Main.cpp:(.text+0x6e2): undefined reference to __imp_ilInit'
/tmp/ccojDm13.o:Main.cpp:(.text+0x71d): undefined reference to Game::Game(GameState*)' /tmp/ccojDm13.o:Main.cpp:(.text+0x729): undefined reference to Game::isRunning() const'
/tmp/ccojDm13.o:Main.cpp:(.text+0x739): undefined reference to Game::update()' /tmp/ccojDm13.o:Main.cpp:(.text+0x747): undefined reference to Game::~Game()'
/tmp/ccojDm13.o:Main.cpp:(.text+0x76e): undefined reference to Game::~Game()' /tmp/ccojDm13.o:Main.cpp:(.text+0x7d9): undefined reference to createGlobals()'
/tmp/ccojDm13.o:Main.cpp:(.text+0x810): undefined reference to SDL_GL_SetAttribute' /tmp/ccojDm13.o:Main.cpp:(.text+0x85a): undefined reference to SDL_CreateWindow'
/tmp/ccojDm13.o:Main.cpp:(.text+0x88c): undefined reference to SDL_GetError' /tmp/ccojDm13.o:Main.cpp:(.text+0x92b): undefined reference to SDL_GL_CreateContext'
/tmp/ccojDm13.o:Main.cpp:(.text+0x94b): undefined reference to SDL_GetError' /tmp/ccojDm13.o:Main.cpp:(.text+0x9f3): undefined reference to Mix_OpenAudio'
/tmp/ccojDm13.o:Main.cpp:(.text+0xa7f): undefined reference to Mix_AllocateChannels' /tmp/ccojDm13.o:Main.cpp:(.text+0xaac): undefined reference to destroyGlobals()'
/tmp/ccojDm13.o:Main.cpp:(.text+0xab1): undefined reference to Mix_HaltMusic' /tmp/ccojDm13.o:Main.cpp:(.text+0xab6): undefined reference to Mix_CloseAudio'
/tmp/ccojDm13.o:Main.cpp:(.text+0xabb): undefined reference to Mix_Quit' /tmp/ccojDm13.o:Main.cpp:(.text+0xac0): undefined reference to SDL_Quit'
/tmp/ccojDm13.o:Main.cpp:(.text+0xc88): undefined reference to IniFile::getValue(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&) const' /tmp/ccojDm13.o:Main.cpp:(.text+0xe02): undefined reference to IniFile::getValue(std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&, std::__cxx11::basic_string<char, std::char_traits, std::allocator >&) const'
/tmp/ccojDm13.o:Main.cpp:(.text$_ZN6LoggerlsEPFRSoS0_E[_ZN6LoggerlsEPFRSoS0_E]+0x98): undefined reference to Logger::notifyListeners(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)' /tmp/ccojDm13.o:Main.cpp:(.text$_ZN12LoadingStateC1Ev[_ZN12LoadingStateC1Ev]+0x19): undefined reference to GameState::GameState(bool)'
/tmp/ccojDm13.o:Main.cpp:(.text$ZN6LoggerlsIPKcEERS_T[ZN6LoggerlsIPKcEERS_T]+0xa4): undefined reference to Logger::notifyListeners(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)' /tmp/ccojDm13.o:Main.cpp:(.text$_ZN6LoggerlsIcEERS_T_[_ZN6LoggerlsIcEERS_T_]+0xa3): undefined reference to Logger::notifyListeners(std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&)'
/tmp/ccojDm13.o:Main.cpp:(.text$ZN6LoggerlsINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEERS_T[ZN6LoggerlsINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEERS_T]+0xa4): undefined reference to Logger::notifyListeners(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)' /tmp/ccojDm13.o:Main.cpp:(.text$_ZN6LoggerlsIiEERS_T_[_ZN6LoggerlsIiEERS_T_]+0x9e): undefined reference to Logger::notifyListeners(std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&)'
/tmp/ccojDm13.o:Main.cpp:(.text$ZN6LoggerlsIbEERS_T[ZN6LoggerlsIbEERS_T]+0xa3): undefined reference to Logger::notifyListeners(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)' /tmp/ccojDm13.o:Main.cpp:(.rdata$.refptr.window[.refptr.window]+0x0): undefined reference to window'
/tmp/ccojDm13.o:Main.cpp:(.rdata$.refptr._ZTV12LoadingState[.refptr._ZTV12LoadingState]+0x0): undefined reference to vtable for LoadingState' /usr/lib/gcc/x86_64-w64-mingw32/5.3-win32/../../../../x86_64-w64-mingw32/lib/libmingw32.a(lib64_libmingw32_a-crt0_c.o): In function main':
/build/mingw-w64-_1w3Xm/mingw-w64-4.0.4/mingw-w64-crt/crt/crt0_c.c:18: undefined reference to `WinMain'
collect2: error: ld returned 1 exit status

[MitchellSternke]

Hi @DaivikDave,

How are you compiling this? Can you show me the command you are using (if you're using one)?