key pad entry system

We are trying to do this and get this error. Thanks in advance for your help.:

Arduino: 1.8.0 (Mac OS X), Board: “Arduino/Genuino Uno”

/Users/meghangerety/Library/Mobile Documents/com~apple~CloudDocs/ BRIAR’S STUFF/ArduinoProjectHandbook_CodeandLibraries/Project_22b_Keypad_Entry_System/Project_22_Keypad_Entry_System/Project_22_Keypad_Entry_System.ino:2:22: fatal error: Password.h: No such file or directory
#include <Password.h>
compilation terminated.
exit status 1
Error compiling for board Arduino/Genuino Uno.

This report would have more information with
“Show verbose output during compilation”
option enabled in File → Preferences.

Password.h: No such file or directory

Doesn't get much clearer than that. Where did you put the Password library?

the libraries are in 'libraries' folder in my 'Arduino' folder on the cloud - Arduino app on my mac. Do I have to tell the app where the libraries are?