FB.getLoginStatus() called before calling FB.init() error in console

Question

I am trying to check if a user is logged in with my app, but I am getting a

FB.getLoginStatus() called before calling FB.init().

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Answer 1

This error will also occur if you don't provide an appId to FB.init. Example:

    FB.init({
        appId: ''
        , channelUrl: '//domain/channel.html'
        , status: true
        , cookie: true
    });

Will result in:

FB.getLoginStatus() called before calling FB.init().