Keypad library compiling error

Projects Programming
1

Hello, I have installed this library but the compiler reports a problem:

Keypad.cpp (35) => Linking error: Keypad.cpp undefined reference to 'Key::Key()'

2

Hello, I have installed this library

I got it from WalMart, and installed it in my locker at school?

3

ruben22:
Hello, I have installed this library but the compiler reports a problem:

Keypad.cpp (35) => Linking error: Keypad.cpp undefined reference to 'Key::Key()'

What version of the library did you install? Are you trying to compile an example from the library? If so, which one? If not, what sketch are you compiling? What Arduino board are you compiling for?
I just tried the HelloKeypad example from Version 3.0 the Keypad library and it compiles fine for UNO and Leonardo so it can be done.

4

Thanks, but I have already solved it

5

It would be useful to others who have the same problem if you said how you solved it.