title: Composition error no idea why this happens please check it out and tell me if it was my coding or visual studio
body: <p><a href="https://imgur.com/a/Gs657" rel="nofollow noreferrer">http://imgur.com/a/Gs657</a></p>
  
  <p>Severity    Code    Description Project File    Line
  Error   C2061   syntax error: identifier 'Birthday' Project1    c:\users\win7\documents\visual studio 2017\projects\project1\project1\people.h  12
  Error   C3646   'dateofbirth': unknown override specifier   Project1    c:\users\win7\documents\visual studio 2017\projects\project1\project1\people.h  16
  Error   C4430   missing type specifier - int assumed. Note: C++ does not support default-int    Project1    c:\users\win7\documents\visual studio 2017\projects\project1\project1\people.h  16
  Error   C2661   'People::People': no overloaded function takes 2 arguments  Project1    c:\users\win7\documents\visual studio 2017\projects\project1\project1\main.cpp  8
  Error   C2061   syntax error: identifier 'Birthday' Project1    c:\users\win7\documents\visual studio 2017\projects\project1\project1\people.h  12
  Error   C3646   'dateofbirth': unknown override specifier   Project1    c:\users\win7\documents\visual studio 2017\projects\project1\project1\people.h  16
  Error   C4430   missing type specifier - int assumed. Note: C++ does not support default-int    Project1    c:\users\win7\documents\visual studio 2017\projects\project1\project1\people.h  16</p>