Obscure erreur de compilation sur le morceau de code C++ débutant

Question

g ++ est en train de sortir une erreur obscure, undefined reference to '__gxx_personality_sj0' dans deux lignes de mon projet. Qu'est-ce que cela signifie dans ce contexte? J'ai beaucoup googlé et j'ai découvert que cela est généralement lié à l'inclusion de code C en C++ ou quelque chose comme ça, ce qui n'est pas ce que je vais faire. (Je sais que le code n'est pas de haute qualité, mais devrait compiler, je crois).

Projecto.cpp

#include "Projecto.h" 
#include <iostream> 
#include <iomanip> 
#include <string> 



Projecto::~Projecto() {} //THIS LINE GETS THAT ERROR 

void Projecto::adicionaVerba(float quantia){ 

verba+=quantia; 

if(verba > verbamaxima) 
    verba -= quantia; 
} 

std::string Projecto::Tipo() 
{ //THIS LINE GETS THAT ERROR 

return "Projecto"; 
} 

void Projecto::Imprime() 
{ 
Identificador::Imprime(); 
cout << verbamaxima << endl; 
} 


bool Projecto::operator> (const Projecto &proj2) const 
{ 
return proj2.verba > this->verba; 
} 

Projecto.h

#ifndef PROJECTO_H_ 
#define PROJECTO_H_ 

#include <iostream> 
#include <iomanip> 
#include "Identificador.h" 
#include <string> 
#include <vector> 

using namespace std; 

class Projecto: public Identificador { 
protected: 

int verbamaxima; 
vector<string> projecto; 
float verba; 

public: 
Projecto(int verbamaxima = 0):Identificador("Projecto") {verba=0;} 
~Projecto(); 
string Tipo(); 
void Imprime(); 
void adicionaVerba(float quantia); 
bool operator> (const Projecto &proj2) const; 

}; 
#endif /* IDENTIFICADOR_H_ */ 

Identificador.cpp

#include "Identificador.h" 

using namespace std; 

#include <iostream> 
#include <iomanip> 


using namespace std; 

Identificador::Identificador(string nome):codigo(id) 
{ 
Identificador::nome = nome; 
id+=2; 
} 

Identificador::~Identificador() 
{ 
} 

int Identificador::id = 1000; 

string Identificador::Tipo(){} 

void Identificador::Imprime() 
{ 
cout << Tipo() << endl; 
cout << Codigo() << endl; 
cout << Nome() << endl; 
} 

int Identificador::Codigo() const 
{ 
return codigo; 
} 

string Identificador::Nome() 
{ 
return nome; 
} 

Identificador.h

#ifndef IDENTIFICADOR_H_ 
#define IDENTIFICADOR_H_ 
#include <iostream> 
#include <iomanip> 

using namespace std; 

class Identificador { 
protected: 
static int id; 
const int codigo; 
string nome; 
public: 
Identificador(string nome); 
virtual ~Identificador(); 
virtual string Tipo(); 
virtual void Imprime(); 
int Codigo() const; 
string Nome(); 
}; 
#endif /* IDENTIFICADOR_H_ */ 

Merci d'avoir lu jusqu'ici!

EDIT:

J'utilise Eclipse avec le toolchain mingw. J'ai récemment installé la distribution Mingw de Nuwen à la place de la version officielle. Compiler le projet, je reçois ce que la sortie de la console (jamais arrivé auparavant):

**** Build of configuration Debug for project estudo_CI1 **** 

**** Internal Builder is used for build    **** 
g++ -oestudo_CI1.exe src\main.o src\Universidade.o src\Projecto.o src\Investigador.o src\Identificador.o 
Warning: .drectve `-aligncomm:___mingw_gMTRemoveKeyDtor,2 ' unrecognized 
Warning: .drectve `-aligncomm:___mingw_gMTKeyDtor,2 ' unrecognized 
Warning: .drectve `-aligncomm:___mingw_usemthread_dll,2' unrecognized 
Warning: .drectve `-aligncomm:___hexdig_D2A,2' unrecognized 
src\Projecto.o: In function `ZN8ProjectoD2Ev': 
C:/Users/Francisco/workspace_aeda/estudo_CI1/Debug/../src/Projecto.cpp:16: undefined reference to `__gxx_personality_sj0' 
src\Projecto.o: In function `ZN8ProjectoD1Ev': 
C:/Users/Francisco/workspace_aeda/estudo_CI1/Debug/../src/Projecto.cpp:16: undefined reference to `__gxx_personality_sj0' 
src\Projecto.o: In function `ZN8ProjectoD0Ev': 
C:/Users/Francisco/workspace_aeda/estudo_CI1/Debug/../src/Projecto.cpp:16: undefined reference to `__gxx_personality_sj0' 
src\Projecto.o: In function `ZN8Projecto4TipoEv': 
C:/Users/Francisco/workspace_aeda/estudo_CI1/Debug/../src/Projecto.cpp:27: undefined reference to `__gxx_personality_sj0' 
src\Projecto.o: In function `ZNSt12_Vector_baseISsSaISsEE12_Vector_implD1Ev': 
C:/strawberry/c/bin/../lib/gcc/mingw32/3.4.5/../../../../include/c++/3.4.5/bits/stl_vector.h:(.text$_ZNSt6vectorISsSaISsEED1Ev[std::vector<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > >::~vector()]+0xc): undefined reference to `__gxx_personality_sj0' 
src\Projecto.o:C:/strawberry/c/bin/../lib/gcc/mingw32/3.4.5/../../../../include/c++/3.4.5/bits/stl_vector.h:(.text$_ZNSt12_Vector_baseISsSaISsEED2Ev[std::_Vector_base<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > >::~_Vector_base()]+0xc): more undefined references to `__gxx_personality_sj0' follow 
/mingw/lib/libstdc++.a(ios_init.o):ios_init.cc:(.text$_ZNSt8ios_base4InitC2Ev+0x719): undefined reference to `_Unwind_Resume' 
/mingw/lib/libstdc++.a(ios_init.o):ios_init.cc:(.text$_ZNSt8ios_base4InitC2Ev+0x739): undefined reference to `_Unwind_Resume' 
/mingw/lib/libstdc++.a(ios_init.o):ios_init.cc:(.text$_ZNSt8ios_base4InitC2Ev+0x759): undefined reference to `_Unwind_Resume' 
/mingw/lib/libstdc++.a(ios_init.o):ios_init.cc:(.text$_ZNSt8ios_base4InitC2Ev+0x779): undefined reference to `_Unwind_Resume' 
/mingw/lib/libstdc++.a(ios_init.o):ios_init.cc:(.text$_ZNSt8ios_base4InitC2Ev+0x799): undefined reference to `_Unwind_Resume' 
/mingw/lib/libstdc++.a(ios_init.o):ios_init.cc:(.text$_ZNSt8ios_base4InitC2Ev+0x7b9): more undefined references to `_Unwind_Resume' follow 
/mingw/lib/libstdc++.a(eh_throw.o):eh_throw.cc:(.text$__cxa_throw+0x4e): undefined reference to `_Unwind_RaiseException' 
/mingw/lib/libstdc++.a(eh_throw.o):eh_throw.cc:(.text$__cxa_rethrow+0x37): undefined reference to `_Unwind_Resume_or_Rethrow' 
/mingw/lib/libstdc++.a(misc-inst.o):misc-inst.cc:(.text$_ZStrsIwSt11char_traitsIwESaIwEERSt13basic_istreamIT_T0_ES7_RSbIS4_S5_T1_E[std::basic_istream<wchar_t, std::char_traits<wchar_t> >& std::operator>><wchar_t, std::char_traits<wchar_t>, std::allocator<wchar_t> >(std::basic_istream<wchar_t, std::char_traits<wchar_t> >&, std::basic_string<wchar_t, std::char_traits<wchar_t>, std::allocator<wchar_t> >&)]+0x270): undefined reference to `_Unwind_Resume' 
/mingw/lib/libstdc++.a(ios.o):ios.cc:(.text$_ZNSt8ios_baseD2Ev+0xd1): undefined reference to `_Unwind_Resume' 
/mingw/lib/libstdc++.a(ios.o):ios.cc:(.text$_ZNSt8ios_baseD0Ev+0xd6): undefined reference to `_Unwind_Resume' 
/mingw/lib/libstdc++.a(ios.o):ios.cc:(.text$_ZNSt8ios_base13_M_grow_wordsEib+0x126): undefined reference to `_Unwind_Resume' 
/mingw/lib/libstdc++.a(ios.o):ios.cc:(.text$_ZNSt8ios_base13_M_grow_wordsEib+0x18e): undefined reference to `_Unwind_Resume' 
/mingw/lib/libstdc++.a(ios.o):ios.cc:(.text$_ZNSt8ios_base17_M_call_callbacksENS_5eventE+0x4b): more undefined references to `_Unwind_Resume' follow 
/mingw/lib/libstdc++.a(eh_personality.o):eh_personality.cc:(.text$__gxx_personality_v0+0xce): undefined reference to `_Unwind_GetIPInfo' 
/mingw/lib/libstdc++.a(eh_personality.o):eh_personality.cc:(.text$__cxa_call_unexpected+0xd5): undefined reference to `_Unwind_Resume' 
/mingw/lib/libstdc++.a(ext-inst.o):ext-inst.cc:(.text$_ZN9__gnu_cxx13stdio_filebufIcSt11char_traitsIcEED1Ev[__gnu_cxx::stdio_filebuf<char, std::char_traits<char> >::~stdio_filebuf()]+0x67): undefined reference to `_Unwind_Resume' 
/mingw/lib/libstdc++.a(ext-inst.o):ext-inst.cc:(.text$_ZN9__gnu_cxx13stdio_filebufIcSt11char_traitsIcEED0Ev[__gnu_cxx::stdio_filebuf<char, std::char_traits<char> >::~stdio_filebuf()]+0x6f): undefined reference to `_Unwind_Resume' 
/mingw/lib/libstdc++.a(ext-inst.o):ext-inst.cc:(.text$_ZN9__gnu_cxx13stdio_filebufIwSt11char_traitsIwEED1Ev[__gnu_cxx::stdio_filebuf<wchar_t, std::char_traits<wchar_t> >::~stdio_filebuf()]+0x67): undefined reference to `_Unwind_Resume' 
/mingw/lib/libstdc++.a(ext-inst.o):ext-inst.cc:(.text$_ZN9__gnu_cxx13stdio_filebufIwSt11char_traitsIwEED0Ev[__gnu_cxx::stdio_filebuf<wchar_t, std::char_traits<wchar_t> >::~stdio_filebuf()]+0x6f): undefined reference to `_Unwind_Resume' 
/mingw/lib/libstdc++.a(ext-inst.o):ext-inst.cc:(.text$_ZN9__gnu_cxx13stdio_filebufIcSt11char_traitsIcEEC2EiSt13_Ios_Openmodej[__gnu_cxx::stdio_filebuf<char, std::char_traits<char> >::stdio_filebuf(int, std::_Ios_Openmode, unsigned int)]+0xb1): more undefined references to `_Unwind_Resume' follow 
/mingw/lib/libstdc++.a(eh_globals.o):eh_globals.cc:(.text$__cxa_get_globals_fast+0xb): undefined reference to `__emutls_get_address' 
/mingw/lib/libstdc++.a(eh_globals.o):eh_globals.cc:(.text$__cxa_get_globals+0xb): undefined reference to `__emutls_get_address' 
/mingw/lib/libstdc++.a(istream.o):istream.cc:(.text$_ZNSi7getlineEPcic+0x26d): undefined reference to `_Unwind_Resume' 
/mingw/lib/libstdc++.a(istream.o):istream.cc:(.text$_ZNSi6ignoreEii+0x2a4): undefined reference to `_Unwind_Resume' 
/mingw/lib/libstdc++.a(istream.o):istream.cc:(.text$_ZStrsIcSt11char_traitsIcEERSt13basic_istreamIT_T0_ES6_PS3_+0x241): undefined reference to `_Unwind_Resume' 
/mingw/lib/libstdc++.a(istream.o):istream.cc:(.text$_ZStrsIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RSbIS4_S5_T1_E+0x2d9): undefined reference to `_Unwind_Resume' 
/mingw/lib/libstdc++.a(istream.o):istream.cc:(.text$_ZSt7getlineIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RSbIS4_S5_T1_ES4_+0x2a1): undefined reference to `_Unwind_Resume' 
/mingw/lib/libstdc++.a(istream.o):istream.cc:(.text$_ZNSt13basic_istreamIwSt11char_traitsIwEE7getlineEPwiw+0x2a5): more undefined references to `_Unwind_Resume' follow 
/mingw/lib/libstdc++.a(guard.o):guard.cc:(.text$_ZN12_GLOBAL__N_1L4initEv+0x14): undefined reference to `__gthr_win32_recursive_mutex_init_function' 
/mingw/lib/libstdc++.a(guard.o):guard.cc:(.text$_ZN9__gnu_cxx17__recursive_mutex6unlockEv[__gnu_cxx::__recursive_mutex::unlock()]+0x15): undefined reference to `__gthr_win32_recursive_mutex_unlock' 
/mingw/lib/libstdc++.a(guard.o):guard.cc:(.text$__cxa_guard_acquire+0x40): undefined reference to `__gthr_win32_recursive_mutex_lock' 
/mingw/lib/libstdc++.a(guard.o):guard.cc:(.text$__cxa_guard_acquire+0xe8): undefined reference to `__gthr_win32_recursive_mutex_unlock' 
/mingw/lib/libstdc++.a(guard.o):guard.cc:(.text$__cxa_guard_acquire+0x12d): undefined reference to `_Unwind_Resume' 
/mingw/lib/libstdc++.a(guard.o):guard.cc:(.text$__cxa_guard_abort+0x21): undefined reference to `__gthr_win32_recursive_mutex_unlock' 
/mingw/lib/libstdc++.a(guard.o):guard.cc:(.text$__cxa_guard_abort+0x5c): undefined reference to `_Unwind_Resume' 
/mingw/lib/libstdc++.a(guard.o):guard.cc:(.text$__cxa_guard_release+0x29): undefined reference to `__gthr_win32_recursive_mutex_unlock' 
/mingw/lib/libstdc++.a(guard.o):guard.cc:(.text$__cxa_guard_release+0x64): undefined reference to `_Unwind_Resume' 
/mingw/lib/libstdc++.a(c++locale.o):c++locale.cc:(.text$_ZSt14__convert_to_vIfEvPKcRT_RSt12_Ios_IostateRKPi+0x126): undefined reference to `_Unwind_Resume' 
/mingw/lib/libstdc++.a(c++locale.o):c++locale.cc:(.text$_ZSt14__convert_to_vIdEvPKcRT_RSt12_Ios_IostateRKPi+0x129): undefined reference to `_Unwind_Resume' 
/mingw/lib/libstdc++.a(c++locale.o):c++locale.cc:(.text$_ZSt14__convert_to_vIeEvPKcRT_RSt12_Ios_IostateRKPi+0x151): undefined reference to `_Unwind_Resume' 
/mingw/lib/libstdc++.a(iostream-inst.o):iostream-inst.cc:(.text$_ZNSdC2EPSt15basic_streambufIcSt11char_traitsIcEE[std::basic_iostream<char, std::char_traits<char> >::basic_iostream(std::basic_streambuf<char, std::char_traits<char> >*)]+0x9b): undefined reference to `_Unwind_Resume' 
/mingw/lib/libstdc++.a(iostream-inst.o):iostream-inst.cc:(.text$_ZNSdC1EPSt15basic_streambufIcSt11char_traitsIcEE[std::basic_iostream<char, std::char_traits<char> >::basic_iostream(std::basic_streambuf<char, std::char_traits<char> >*)]+0xea): more undefined references to `_Unwind_Resume' follow 
collect2: ld returned 1 exit status 
Build error occurred, build is stopped 
Time consumed: 1621 ms. 

EDIT 2:

Cela n'a probablement rien à voir avec le code ci-dessus, tous les projets que je Compile semblent échouer avec ces erreurs (ils ont bien compilé avant).

EDIT 3: RÉSOLU en supprimant .metadata. Merci quand même les gars.

Answer 1

assurez-vous compilez avec g ++, non gcc, et assurez-vous que l'extension du fichier est Cpp pas .C

De plus, si vous pouvez modifier votre message et inclure le g ++ commande que vous utilisez, que serait une grande aide.

Answer 2

Utilisez-vous toujours le même g++ pour compiler et lier?

Answer 3

Vous avez nettoyé le projet? Peut-être que les fichiers .o précédents ont été construits avec une autre version des bibliothèques.

Answer 4

Utiliser g ++ comme lien ou lien avec -lstdC++