Unable to see "Open in Xcode" button on GitHub

Question

As mentioned in the GitHub and the New Source Control Workflows in Xcode 9 Apple video session, we are able to clone the project directly from Xcode, as shown at Clone in Xcode.

However, for some reason I can't see it:

Please note that:

• I am using Safari.
• I've already logged in to GitHub.
• The installed version of Xcode is 9.3.

Since I have installed Xcode 9.x, I would assume that it should be automatically appear when clicking the "clone or download" button. Should I do extra work to be able to see it?

Answer 1

UPDATE: in Xcode 12, this works even without logging in.

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Original answer:

You have to be logged in to GitHub in Xcode as well.

In Xcode, navigate to Preferences.../Accounts, click on the + button in the lower left corner, select GitHub and enter your login credentials. After that, refresh the GitHub page and you should see the button.

Fun fact: you don't even have to use Safari, the button is available in other browsers as well (such as Chrome).