View Compilation Error

0_0_21809250_11829.cpp: In function 'int main()':
0_0_21809250_11829.cpp:3:2: error: 'SingletonGrabber' was not declared in this scope
  SingletonGrabber grab;
  ^
0_0_21809250_11829.cpp:4:2: error: 'Singleton' was not declared in this scope
  Singleton* pSingleton1 = grab.GetInstance();
  ^
0_0_21809250_11829.cpp:4:13: error: 'pSingleton1' was not declared in this scope
  Singleton* pSingleton1 = grab.GetInstance();
             ^
0_0_21809250_11829.cpp:4:27: error: 'grab' was not declared in this scope
  Singleton* pSingleton1 = grab.GetInstance();
                           ^
0_0_21809250_11829.cpp:6:13: error: 'pSingleton2' was not declared in this scope
  Singleton* pSingleton2 = grab.GetInstance();
             ^