每次我在 Eclipse Oxygen CDT 中创建一个新项目时，我总是被三个主要错误所困扰：“Type 'std::string' could not be resolved”（或类似的包含问题）、“Launch failed. Binaries not found, ”和“启动失败。程序文件不存在”。
我觉得我几乎什么都试过了。我已经研究并关注了这些问题：Eclipse C++：无法解析符号“std” ，启动配置中指定的程序文件不存在，Launch Failed Binary not found Eclipse for C in Windows ，Eclipse CDT project built but “Launch失败的。找不到二进制文件” ，Eclipse for C++ 中的“字符串无法解析”错误（Eclipse 无法解析标准库） ，C++ - 未解决的包含：iostream ，即使构建成功，Eclipse c++ 类型也无法解析错误 ，以及如何包含另一个文件夹中的文件？ .
嗨世界示例：
/*
* Hi_world.cpp
*
* Created on: Feb 22, 2018
* Author: Me
*/
//I tried using the actual file paths but that didn't help either
#include <C:\MinGW\lib\gcc\mingw32\5.3.0\include\c++\iostream>
#include <C:\MinGW\include\string.h>
using namespace std;//"Symbol 'std' could not be resolved"
int main()
{
std::string me = "hi world";//"Type 'std::string' could not be resolved"
std::cout << me << std::endl;//"Symbol 'cout' could not be resolved"
// and "Symbol 'endl' could not be resolved"
}
注意：我试图让它一天运行几个小时，但没有成功，所以我保存并退出了 eclipse 和我的电脑。第二天我打开我的电脑，清理、构建并按原样运行我的这个程序，第一次尝试时它运行正确（尽管红色的波浪线没有消失）。
听到这个程序构建日志：
12:37:15 **** Rebuild of configuration Debug for project Hi world ****
Info: Internal Builder is used for build
g++ -O0 -g3 -Wall -c -fmessage-length=0 -o Hi_world.o "..\\Hi_world.cpp"
g++ "-LC:\\MinGW" -o "Hi world.exe" Hi_world.o
12:37:17 Build Finished (took 1s.47ms)
听到是另一个仍然没有运行的例子：
#include <iostream>
#include "stdio.h"
#include "time.h"
#include "string.h"
int main ()
{
time_t timer;
struct tm y2k = {0};
double seconds;
y2k.tm_hour = 0; y2k.tm_min = 0; y2k.tm_sec = 0;
y2k.tm_year = 100; y2k.tm_mon = 0; y2k.tm_mday = 1;
time(&timer); /* get current time; same as: timer = time(NULL) */
seconds = difftime(timer,mktime(&y2k));
printf ("%.f seconds since January 1, 2000 in the current timezone", seconds);
return 0;
}
注意：这包含之前提到的所有包含错误，但是在清理和重建之间随机地这些红色波浪形错误消失了。但是，它仍然无法正确构建和运行，并出现错误消息“启动失败。找不到二进制文件”。
听到这个程序构建日志：
12:40:10 **** Rebuild of configuration Debug for project Time ****
Info: Internal Builder is used for build
g++ "-IC:\\MinGW\\lib\\gcc\\mingw32\\5.3.0\\include\\c++\\debug" -O0 -g3 -Wall -c -fmessage-length=0 -o Time.o "..\\Time.cpp"
In file included from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\basic_ios.h:37:0,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ios:44,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ostream:38,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\iostream:39,
from ..\Time.cpp:8:
c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\locale_facets.h: In member function 'std::__cxx11::string std::__cxx11::numpunct<_CharT>::grouping() const':
c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\locale_facets.h:1777:7: error: return type 'std::__cxx11::string {aka class std::__cxx11::basic_string<char>}' is incomplete
{ return this->do_grouping(); }
^
c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\locale_facets.h: In member function 'virtual std::__cxx11::string std::__cxx11::numpunct<_CharT>::do_grouping() const':
c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\locale_facets.h:1845:7: error: return type 'std::__cxx11::string {aka class std::__cxx11::basic_string<char>}' is incomplete
{ return _M_data->_M_grouping; }
^
In file included from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\locale_facets.h:2651:0,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\basic_ios.h:37,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ios:44,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ostream:38,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\iostream:39,
from ..\Time.cpp:8:
c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\locale_facets.tcc: In member function 'void std::__numpunct_cache<_CharT>::_M_cache(const std::locale&)':
c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\locale_facets.tcc:88:26: error: invalid use of incomplete type 'const string {aka const class std::__cxx11::basic_string<char>}'
_M_grouping_size = __g.size();
^
In file included from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\iosfwd:39:0,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ios:38,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ostream:38,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\iostream:39,
from ..\Time.cpp:8:
c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\stringfwd.h:71:11: note: declaration of 'std::__cxx11::string {aka class std::__cxx11::basic_string<char>}'
class basic_string;
^
In file included from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\locale_facets.h:2651:0,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\basic_ios.h:37,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ios:44,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ostream:38,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\iostream:39,
from ..\Time.cpp:8:
c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\locale_facets.tcc:90:7: error: invalid use of incomplete type 'const string {aka const class std::__cxx11::basic_string<char>}'
__g.copy(__grouping, _M_grouping_size);
^
In file included from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\iosfwd:39:0,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ios:38,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ostream:38,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\iostream:39,
from ..\Time.cpp:8:
c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\stringfwd.h:71:11: note: declaration of 'std::__cxx11::string {aka class std::__cxx11::basic_string<char>}'
class basic_string;
^
In file included from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\locale_facets.h:2651:0,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\basic_ios.h:37,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ios:44,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ostream:38,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\iostream:39,
from ..\Time.cpp:8:
c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\locale_facets.tcc: In member function '_InIter std::num_get<_CharT, _InIter>::_M_extract_float(_InIter, _InIter, std::ios_base&, std::ios_base::iostate&, std::__cxx11::string&) const':
c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\locale_facets.tcc:211:18: error: invalid use of incomplete type 'std::__cxx11::string {aka class std::__cxx11::basic_string<char>}'
__found_grouping.reserve(32);
^
In file included from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\iosfwd:39:0,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ios:38,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ostream:38,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\iostream:39,
from ..\Time.cpp:8:
c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\stringfwd.h:71:11: note: declaration of 'std::__cxx11::string {aka class std::__cxx11::basic_string<char>}'
class basic_string;
^
In file included from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\locale_facets.h:2651:0,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\basic_ios.h:37,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ios:44,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ostream:38,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\iostream:39,
from ..\Time.cpp:8:
c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\locale_facets.tcc:282:10: error: invalid use of incomplete type 'std::__cxx11::string {aka class std::__cxx11::basic_string<char>}'
__xtrc.clear();
^
In file included from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\iosfwd:39:0,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ios:38,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ostream:38,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\iostream:39,
from ..\Time.cpp:8:
c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\stringfwd.h:71:11: note: declaration of 'std::__cxx11::string {aka class std::__cxx11::basic_string<char>}'
class basic_string;
^
In file included from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\locale_facets.h:2651:0,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\basic_ios.h:37,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ios:44,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ostream:38,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\iostream:39,
from ..\Time.cpp:8:
c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\locale_facets.tcc:296:27: error: invalid use of incomplete type 'std::__cxx11::string {aka class std::__cxx11::basic_string<char>}'
if (__found_grouping.size())
^
In file included from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\iosfwd:39:0,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ios:38,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ostream:38,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\iostream:39,
from ..\Time.cpp:8:
c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\stringfwd.h:71:11: note: declaration of 'std::__cxx11::string {aka class std::__cxx11::basic_string<char>}'
class basic_string;
^
In file included from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\locale_facets.h:2651:0,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\basic_ios.h:37,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ios:44,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ostream:38,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\iostream:39,
from ..\Time.cpp:8:
c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\locale_facets.tcc:319:27: error: invalid use of incomplete type 'std::__cxx11::string {aka class std::__cxx11::basic_string<char>}'
if (__found_grouping.size() && !__found_dec)
^
In file included from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\iosfwd:39:0,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ios:38,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ostream:38,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\iostream:39,
from ..\Time.cpp:8:
c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\stringfwd.h:71:11: note: declaration of 'std::__cxx11::string {aka class std::__cxx11::basic_string<char>}'
class basic_string;
^
In file included from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\locale_facets.h:2651:0,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\basic_ios.h:37,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ios:44,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ostream:38,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\iostream:39,
from ..\Time.cpp:8:
c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\locale_facets.tcc:355:27: error: invalid use of incomplete type 'std::__cxx11::string {aka class std::__cxx11::basic_string<char>}'
if (__found_grouping.size())
^
In file included from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\iosfwd:39:0,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ios:38,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ostream:38,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\iostream:39,
from ..\Time.cpp:8:
c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\stringfwd.h:71:11: note: declaration of 'std::__cxx11::string {aka class std::__cxx11::basic_string<char>}'
class basic_string;
^
In file included from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\locale_facets.h:2651:0,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\basic_ios.h:37,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ios:44,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ostream:38,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\iostream:39,
from ..\Time.cpp:8:
c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\locale_facets.tcc: In member function '_InIter std::num_get<_CharT, _InIter>::_M_extract_int(_InIter, _InIter, std::ios_base&, std::ios_base::iostate&, _ValueT&) const':
c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\locale_facets.tcc:468:20: error: invalid use of incomplete type 'std::__cxx11::string {aka class std::__cxx11::basic_string<char>}'
__found_grouping.reserve(32);
^
In file included from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\iosfwd:39:0,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ios:38,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ostream:38,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\iostream:39,
from ..\Time.cpp:8:
c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\stringfwd.h:71:11: note: declaration of 'std::__cxx11::string {aka class std::__cxx11::basic_string<char>}'
class basic_string;
^
In file included from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\locale_facets.h:2651:0,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\basic_ios.h:37,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ios:44,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ostream:38,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\iostream:39,
from ..\Time.cpp:8:
c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\locale_facets.tcc:554:22: error: invalid use of incomplete type 'std::__cxx11::string {aka class std::__cxx11::basic_string<char>}'
if (__found_grouping.size())
^
In file included from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\iosfwd:39:0,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ios:38,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ostream:38,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\iostream:39,
from ..\Time.cpp:8:
c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\stringfwd.h:71:11: note: declaration of 'std::__cxx11::string {aka class std::__cxx11::basic_string<char>}'
class basic_string;
^
In file included from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\locale_facets.h:2651:0,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\basic_ios.h:37,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ios:44,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ostream:38,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\iostream:39,
from ..\Time.cpp:8:
c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\locale_facets.tcc:567:55: error: invalid use of incomplete type 'std::__cxx11::string {aka class std::__cxx11::basic_string<char>}'
if ((!__sep_pos && !__found_zero && !__found_grouping.size())
^
In file included from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\iosfwd:39:0,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ios:38,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ostream:38,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\iostream:39,
from ..\Time.cpp:8:
c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\stringfwd.h:71:11: note: declaration of 'std::__cxx11::string {aka class std::__cxx11::basic_string<char>}'
class basic_string;
^
In file included from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\locale_facets.h:2651:0,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\basic_ios.h:37,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ios:44,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ostream:38,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\iostream:39,
from ..\Time.cpp:8:
c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\locale_facets.tcc: In member function 'virtual _InIter std::num_get<_CharT, _InIter>::do_get(std::num_get<_CharT, _InIter>::iter_type, std::num_get<_CharT, _InIter>::iter_type, std::ios_base&, std::ios_base::iostate&, float&) const':
c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\locale_facets.tcc:695:13: error: invalid use of incomplete type 'std::__cxx11::string {aka class std::__cxx11::basic_string<char>}'
__xtrc.reserve(32);
^
In file included from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\iosfwd:39:0,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ios:38,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ostream:38,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\iostream:39,
from ..\Time.cpp:8:
c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\stringfwd.h:71:11: note: declaration of 'std::__cxx11::string {aka class std::__cxx11::basic_string<char>}'
class basic_string;
^
In file included from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\locale_facets.h:2651:0,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\basic_ios.h:37,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ios:44,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ostream:38,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\iostream:39,
from ..\Time.cpp:8:
c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\locale_facets.tcc:697:33: error: invalid use of incomplete type 'std::__cxx11::string {aka class std::__cxx11::basic_string<char>}'
std::__convert_to_v(__xtrc.c_str(), __v, __err, _S_get_c_locale());
^
In file included from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\iosfwd:39:0,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ios:38,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ostream:38,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\iostream:39,
from ..\Time.cpp:8:
c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\stringfwd.h:71:11: note: declaration of 'std::__cxx11::string {aka class std::__cxx11::basic_string<char>}'
class basic_string;
^
In file included from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\locale_facets.h:2651:0,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\basic_ios.h:37,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ios:44,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ostream:38,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\iostream:39,
from ..\Time.cpp:8:
c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\locale_facets.tcc: In member function 'virtual _InIter std::num_get<_CharT, _InIter>::do_get(std::num_get<_CharT, _InIter>::iter_type, std::num_get<_CharT, _InIter>::iter_type, std::ios_base&, std::ios_base::iostate&, double&) const':
c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\locale_facets.tcc:710:13: error: invalid use of incomplete type 'std::__cxx11::string {aka class std::__cxx11::basic_string<char>}'
__xtrc.reserve(32);
^
In file included from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\iosfwd:39:0,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ios:38,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ostream:38,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\iostream:39,
from ..\Time.cpp:8:
c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\stringfwd.h:71:11: note: declaration of 'std::__cxx11::string {aka class std::__cxx11::basic_string<char>}'
class basic_string;
^
In file included from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\locale_facets.h:2651:0,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\basic_ios.h:37,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ios:44,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ostream:38,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\iostream:39,
from ..\Time.cpp:8:
c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\locale_facets.tcc:712:33: error: invalid use of incomplete type 'std::__cxx11::string {aka class std::__cxx11::basic_string<char>}'
std::__convert_to_v(__xtrc.c_str(), __v, __err, _S_get_c_locale());
^
In file included from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\iosfwd:39:0,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ios:38,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ostream:38,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\iostream:39,
from ..\Time.cpp:8:
c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\stringfwd.h:71:11: note: declaration of 'std::__cxx11::string {aka class std::__cxx11::basic_string<char>}'
class basic_string;
^
In file included from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\locale_facets.h:2651:0,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\basic_ios.h:37,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ios:44,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ostream:38,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\iostream:39,
from ..\Time.cpp:8:
c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\locale_facets.tcc: In member function 'virtual _InIter std::num_get<_CharT, _InIter>::do_get(std::num_get<_CharT, _InIter>::iter_type, std::num_get<_CharT, _InIter>::iter_type, std::ios_base&, std::ios_base::iostate&, long double&) const':
c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\locale_facets.tcc:742:13: error: invalid use of incomplete type 'std::__cxx11::string {aka class std::__cxx11::basic_string<char>}'
__xtrc.reserve(32);
^
In file included from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\iosfwd:39:0,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ios:38,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ostream:38,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\iostream:39,
from ..\Time.cpp:8:
c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\stringfwd.h:71:11: note: declaration of 'std::__cxx11::string {aka class std::__cxx11::basic_string<char>}'
class basic_string;
^
In file included from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\locale_facets.h:2651:0,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\basic_ios.h:37,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ios:44,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ostream:38,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\iostream:39,
from ..\Time.cpp:8:
c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\locale_facets.tcc:744:33: error: invalid use of incomplete type 'std::__cxx11::string {aka class std::__cxx11::basic_string<char>}'
std::__convert_to_v(__xtrc.c_str(), __v, __err, _S_get_c_locale());
^
In file included from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\iosfwd:39:0,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ios:38,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\ostream:38,
from c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\iostream:39,
from ..\Time.cpp:8:
c:\mingw\lib\gcc\mingw32\5.3.0\include\c++\bits\stringfwd.h:71:11: note: declaration of 'std::__cxx11::string {aka class std::__cxx11::basic_string<char>}'
class basic_string;
^
12:40:10 Build Finished (took 656ms)
我正在使用 Windows 10 的本机安装，并且正在使用我的计算机上安装的 MinGW。这个问题的奇怪之处在于我将开始一个新项目，会弹出包含错误，使其无法构建或运行，从而导致其他两个错误，然后我将与它战斗几天，遵循上面的答案，无处可去。然后出乎意料，我将单击“构建并运行”，程序将正确构建并正常运行（只要我不更改代码或此后单击“清理”）。如果我尝试创建一个类并将所有方法声明的类头文件包含在类 .cpp 文件中，并且在 .cpp 文件中包含与上面示例中类似的错误，情况会变得更糟。
这可能是由 Eclipse CDT 或 MinGW 的绝缘错误引起的吗？是否有我可以在 Eclipse 中更改的设置来指定在哪里查找它的库（这会有帮助吗？）？非常感谢任何帮助=)。
谢谢！