can someone answer why i'm so confused?

[iMore Question]

Today I got the app Pok?mon Go and it said enter your username and password, but I don't have one so I keep trying to make up one but it just says this password of username is incorrect. Does anyone know how to help me?

 

[Just_Me_D]

To sign up for the game, you'll need to use your Google account or sign up for a Pok?mon Trainer Club account.

http://www.imore.com/pokemon-go