Ao final de todos os passos do caítulo 8, ocorre essa falha ao tentar logar com GitHub:
failed to fetch user profile (status: 401 data: {“message”:“Requires authentication”,“documentation_url”:“https://developer.github.com/v3”})
at /home/israel/projetos/node/contatooh/node_modules/passport-github/lib/passport-github/strategy.js:90:28
at passBackControl (/home/israel/projetos/node/contatooh/node_modules/passport-github/node_modules/passport-oauth/node_modules/oauth/lib/oauth2.js:132:9)
at IncomingMessage. (/home/israel/projetos/node/contatooh/node_modules/passport-github/node_modules/passport-oauth/node_modules/oauth/lib/oauth2.js:157:7)
at IncomingMessage.emit (events.js:117:20)
at _stream_readable.js:944:16
at process._tickCallback (node.js:458:13)
Alguém poderia me ajudar?