Code::blocks error with C++ with prompt for "Building a Project"

Screenshot

I am currently beginning to use Code::blocks as an IDE for C++. However, I tried to create a test program (the usual "Hallo World" type of thing). Here is the code:

#include<iostream>

using namespace std;

int main()
{
    cout << "Hello world!" << endl;
    return 0;
}

I always ran into errors prompting me to "build a program". If I click "No", the output is (verbatim):

Process returned 32763 (0x7FFB)    executation time : 0.000 s
Press any key to continue.

If I click "Yes" a new tab called "cwchar" opens. The tab contains this code:

//
// ISO C++ 14882: 21.4
//

#pragma GCC system_header

#include <bits/c++config.h>

#if _GLIBCXX_HAVE_WCHAR_H
#include <wchar.h> //LOOK HERE THIS IS THE LINE CONTAINING ERROR!!!!
#endif

#ifndef _GLIBCXX_CWCHAR
#define _GLIBCXX_CWCHAR 1

// Need to do a bit of trickery here with mbstate_t as char_traits
// assumes it is in wchar.h, regardless of wchar_t specializations.
#ifndef _GLIBCXX_HAVE_MBSTATE_T
extern "C"
{
  typedef struct
  {
    int __fill[6];
  } mbstate_t;
}
#endif

namespace std
{
  using ::mbstate_t;
} // namespace std

// Get rid of those macros defined in <wchar.h> in lieu of real functions.
#undef btowc
#undef fgetwc
#undef fgetws
#undef fputwc
#undef fputws
#undef fwide
#undef fwprintf
#undef fwscanf
#undef getwc
#undef getwchar
#undef mbrlen
#undef mbrtowc
#undef mbsinit
#undef mbsrtowcs
#undef putwc
#undef putwchar
#undef swprintf
#undef swscanf
#undef ungetwc
#undef vfwprintf
#if _GLIBCXX_HAVE_VFWSCANF
# undef vfwscanf
#endif
#undef vswprintf
#if _GLIBCXX_HAVE_VSWSCANF
# undef vswscanf
#endif
#undef vwprintf
#if _GLIBCXX_HAVE_VWSCANF
# undef vwscanf
#endif
#undef wcrtomb
#undef wcscat
#undef wcschr
#undef wcscmp
#undef wcscoll
#undef wcscpy
#undef wcscspn
#undef wcsftime
#undef wcslen
#undef wcsncat
#undef wcsncmp
#undef wcsncpy
#undef wcspbrk
#undef wcsrchr
#undef wcsrtombs
#undef wcsspn
#undef wcsstr
#undef wcstod
#if _GLIBCXX_HAVE_WCSTOF
# undef wcstof
#endif
#undef wcstok
#undef wcstol
#undef wcstoul
#undef wcsxfrm
#undef wctob
#undef wmemchr
#undef wmemcmp
#undef wmemcpy
#undef wmemmove
#undef wmemset
#undef wprintf
#undef wscanf

#if _GLIBCXX_USE_WCHAR_T

extern "C++"
{
namespace std _GLIBCXX_VISIBILITY(default)
{
_GLIBCXX_BEGIN_NAMESPACE_VERSION

  using ::wint_t;

  using ::btowc;
  using ::fgetwc;
  using ::fgetws;
  using ::fputwc;
  using ::fputws;
  using ::fwide;
  using ::fwprintf;
  using ::fwscanf;
  using ::getwc;
  using ::getwchar;
  using ::mbrlen;
  using ::mbrtowc;
  using ::mbsinit;
  using ::mbsrtowcs;
  using ::putwc;
  using ::putwchar;
#ifndef _GLIBCXX_HAVE_BROKEN_VSWPRINTF
  using ::swprintf;
#endif
  using ::swscanf;
  using ::ungetwc;
  using ::vfwprintf;
#if _GLIBCXX_HAVE_VFWSCANF
  using ::vfwscanf;
#endif
#ifndef _GLIBCXX_HAVE_BROKEN_VSWPRINTF
  using ::vswprintf;
#endif
#if _GLIBCXX_HAVE_VSWSCANF
  using ::vswscanf;
#endif
  using ::vwprintf;
#if _GLIBCXX_HAVE_VWSCANF
  using ::vwscanf;
#endif
  using ::wcrtomb;
  using ::wcscat;
  using ::wcscmp;
  using ::wcscoll;
  using ::wcscpy;
  using ::wcscspn;
  using ::wcsftime;
  using ::wcslen;
  using ::wcsncat;
  using ::wcsncmp;
  using ::wcsncpy;
  using ::wcsrtombs;
  using ::wcsspn;
  using ::wcstod;
#if _GLIBCXX_HAVE_WCSTOF
  using ::wcstof;
#endif
  using ::wcstok;
  using ::wcstol;
  using ::wcstoul;
  using ::wcsxfrm;
  using ::wctob;
  using ::wmemcmp;
  using ::wmemcpy;
  using ::wmemmove;
  using ::wmemset;
  using ::wprintf;
  using ::wscanf;
  using ::wcschr;
  using ::wcspbrk;
  using ::wcsrchr;
  using ::wcsstr;
  using ::wmemchr;

#ifndef __CORRECT_ISO_CPP_WCHAR_H_PROTO
  inline wchar_t*
  wcschr(wchar_t* __p, wchar_t __c)
  { return wcschr(const_cast<const wchar_t*>(__p), __c); }

  inline wchar_t*
  wcspbrk(wchar_t* __s1, const wchar_t* __s2)
  { return wcspbrk(const_cast<const wchar_t*>(__s1), __s2); }

  inline wchar_t*
  wcsrchr(wchar_t* __p, wchar_t __c)
  { return wcsrchr(const_cast<const wchar_t*>(__p), __c); }

  inline wchar_t*
  wcsstr(wchar_t* __s1, const wchar_t* __s2)
  { return wcsstr(const_cast<const wchar_t*>(__s1), __s2); }

  inline wchar_t*
  wmemchr(wchar_t* __p, wchar_t __c, size_t __n)
  { return wmemchr(const_cast<const wchar_t*>(__p), __c, __n); }
#endif

_GLIBCXX_END_NAMESPACE_VERSION
} // namespace
} // extern "C++"

#if _GLIBCXX_USE_C99_WCHAR

#undef wcstold
#undef wcstoll
#undef wcstoull

namespace __gnu_cxx
{
#if _GLIBCXX_USE_C99_CHECK || _GLIBCXX_USE_C99_DYNAMIC
  extern "C" long double
    (wcstold)(const wchar_t * __restrict, wchar_t ** __restrict) throw ();
#endif
#if !_GLIBCXX_USE_C99_DYNAMIC
  using ::wcstold;
#endif
#if _GLIBCXX_USE_C99_LONG_LONG_CHECK || _GLIBCXX_USE_C99_LONG_LONG_DYNAMIC
  extern "C" long long int
    (wcstoll)(const wchar_t * __restrict, wchar_t ** __restrict, int) throw ();
  extern "C" unsigned long long int
    (wcstoull)(const wchar_t * __restrict, wchar_t ** __restrict, int) throw ();
#endif
#if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC
  using ::wcstoll;
  using ::wcstoull;
#endif
} // namespace __gnu_cxx

namespace std
{
  using ::__gnu_cxx::wcstold;
  using ::__gnu_cxx::wcstoll;
  using ::__gnu_cxx::wcstoull;
} // namespace

#endif

#endif //_GLIBCXX_USE_WCHAR_T

#if __cplusplus >= 201103L

#ifdef _GLIBCXX_USE_WCHAR_T

namespace std
{
#if _GLIBCXX_HAVE_WCSTOF
  using std::wcstof;
#endif
#if _GLIBCXX_HAVE_VFWSCANF
  using std::vfwscanf;
#endif
#if _GLIBCXX_HAVE_VSWSCANF
  using std::vswscanf;
#endif
#if _GLIBCXX_HAVE_VWSCANF
  using std::vwscanf;
#endif

#if _GLIBCXX_USE_C99_WCHAR
  using std::wcstold;
  using std::wcstoll;
  using std::wcstoull;
#endif
} // namespace

#endif // _GLIBCXX_USE_WCHAR_T

#endif // C++11

#endif

There is then a compiling error at the line I marked with "LOOK HERE THIS IS LINE CONTAINING ERROR!!!". I don't now how to fix this. Can anyone help? Thanks!