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currently I'm trying to connect to my gmail.com account via gnus.
Following emacswiki.org: Gnus#Gmail Quickstart guide I get
nnimap (gmail) open error: 'NO (ALERT) Please log in via your web browser: https://support.google.com/mail/accounts/answer/78754 (Failure)'. Continue? (y or n) n
Couldn't open server on gmail
Searching suggested page by google did not provide solution I could use.
Where did I went wrong?
This is not really a gnus question, but the problem is 2 factor authentication in gmail. https://productforums.google.com/forum/#!topic/gmail/WUaXHSdI3WM explains the issue and how to fix it (you need to create an application specific password).
This "quickstart guide" article you are following is probably outdated ; Here is a recent document about using Gnus using oauth2 with 2 steps authorization.
