Heres the code, extremely basic Cpp 

```
#include <iostream>
using namespace std;

int main(){
    cout << "C++ is FUN!\n";
    return 0;
}

```

The symbols that can not be found are "std" trying to use the name space, and "cout".
the full error message is.

```
make: *** [FirstProject] Error 1    FirstProject            C/C++ Problem   
Symbol 'cout' could not be resolved FirstProgram.cpp    /FirstProject   line 5  Semantic Error    
Symbol 'std' could not be resolved  FirstProgram.cpp    /FirstProject   line 2  Semantic Error    
symbol(s) not found for architecture x86_64 FirstProject            C/C++ Problem

```

EDIT:
here is the whole linker line:

```
make all 
Building target: FirstProject
Invoking: Cross G++ Linker
g++  -o "FirstProject"  ./FirstProgram.o   
Undefined symbols for architecture x86_64:
  "_main", referenced from:
     implicit entry/start for main executable
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make: *** [FirstProject] Error 1

```

Does anyone know what could potentially be the problem?