面对C ++错误==>铛：错误：链接器命令失败，退出代码为1（使用-v查看调用）

Question

我有以下c ++代码，可以在使用g ++的终端中很好地进行编译。

g++ pointTypeMain.cpp pointTypeImp.cpp -o pointType

但是，当我尝试在IDE中运行它时却失败了。这是链接问题。但我不确定该如何解决。

// pointType.h
#ifndef H_PointType
#define H_PointType

class pointType
{
public:
    void setPoint(double x, double y);
    void print() const;
    double getX() const;
    double getY() const;
    pointType(double x = 0.0, double y = 0.0);

protected:
    double xCoordinate;
    double yCoordinate;
};

#endif

//Implementation File pointTypeImp.cpp

#include <iostream>
#include "pointType.h"

using namespace std;

void pointType::setPoint(double x, double y)
{
    xCoordinate = x;
    yCoordinate = y;
}

void pointType::print() const
{
    cout << "(" << xCoordinate << ", "
         << yCoordinate << ")" << endl;
}

double pointType::getX() const
{
    return xCoordinate;
}

double pointType::getY() const
{
    return yCoordinate;
}

pointType::pointType(double x, double y)
{
    xCoordinate = x;
    yCoordinate = y;
}


// Main implementation

#include <iostream>
#include <iomanip>
#include "pointType.h"

using namespace std;

int main()
{
    pointType point1(3.5, 2.5);
    pointType point2;

    cout << fixed << showpoint;
    cout << setprecision(2);

    cout << "Point 1: ";
    point1.print();
    cout << endl;

    point2.setPoint(-2.5, 7);

    cout << "Point 2: ";
    point2.print();
    cout << endl;


    return 0;
}

O / p错误：

====================[ Build | pointType | Debug ]===============================
/Applications/CLion.app/Contents/bin/cmake/mac/bin/cmake --build /Users/vpangul/CLionProjects/pointType/cmake-build-debug --target pointType -- -j 4
[ 50%] Linking CXX executable pointType
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[3]: *** [pointType] Error 1
make[2]: *** [CMakeFiles/pointType.dir/all] Error 2
make[1]: *** [CMakeFiles/pointType.dir/rule] Error 2
make: *** [pointType] Error 2

当我尝试在IDE的（eclipse，CLion）中构建它时，出现以下错误。有人可以帮忙吗？附加项目属性的屏幕截图。Project toolchain properties