c++ - unresolved inclusion with any include files -

i'm getting error running hello world program using eclipse. have installed mingw , cygwin, know need 1 have other editor uses 1 not other. have checked paths , symbols under gcc c++ compiler, links directories contain include files. however, still getting unresolved inclusion error on include files. i'm using windows 7. code:

#include <iostream> #include <strings> using namespace std;  int main() {      string yourname;      cout << "enter name: ";     cin >> yourname;     cout << "hello " << yourname << endl;     return 0; } 

this detailed error

description                         resource path                   location type symbol 'cin' not resolved  test.c  /hello_world/src    line 17 semantic error symbol 'cout' not resolved test.c  /hello_world/src    line 16 semantic error symbol 'cout' not resolved test.c  /hello_world/src    line 18 semantic error symbol 'endl' not resolved test.c  /hello_world/src    line 18 semantic error type 'namespace' not resolved  test.c  /hello_world/src    line 10 semantic error type 'string' not resolved test.c  /hello_world/src    line 14 semantic error 

any help? thanks

most likely, have selected create c project, in case eclipse sets tool chain use c compiler only.

since using c++, should create c++ project , create source files .cpp extension.

you try convert existing c project c++ project adjusting settings in project properties, easier create new project , copy files on (especially since seem starting, , not have big code base).

as can see in following picture, simplec has been created c-project - there, source code shows errors (even though have renamed .cpp).

the simplecpp project created c++ project - there, source code not show errors.