Service cannot be reached

[AlexandreCordaJunior]

I'm trying to complete the tutorial, but I can't make the app work, it falls in this page with this message

[thecodester]

What tutorial is this part of?

P.S.: When you click Provide Feedback, we automatically generate all the informarmation we need to help you. No need to delete. :-)

[thecodester]

I will close if this is a duplicate.