Initialization Error While Logging With Facebook

Expo SDK
1

Please provide the following:

  1. SDK Version: 35
  2. Platforms(Android/iOS/web/all): iOS (non-ejected)

After redirecting back from Facebook (successful authorization) I get the following error from the Expo SDK:

FBSDKGraphRequestConnection cannot be started before Facebook SDK initialized

My login code:

import * as Facebook from 'expo-facebook'

try {
            const fbAccess = await Facebook.logInWithReadPermissionsAsync('xxxxxxxxxxxx', {
              permissions: ['public_profile', 'email']
            });

            if (fbAccess.type === 'success') {
                alert('OK!')
            } else {
                alert('You cancelled login, maybe try phone login?')
            }
          } catch (err) {
            alert(`Facebook Login Error: ${JSON.stringify(err)}, maybe try login by phone?`);
          }

This happens consistently with the Native App login. I have been looking for a while but can’t figure out what I am doing wrong…

I should precise that this error only happens when using the native app to login. Login through the webview works fine.

2

I’m also experiencing this issue with v35 and the iOS Facebook app. Same code worked with previous Expo versions.

3

By the way, in SDK version 36 the Facebook module initialization has been changed:

Facebook module initialization

To prevent unintended data collection, the Facebook module no longer auto-initializes when your app starts up. If your app uses Facebook login, you must initialize the Facebook SDK manually, either at runtime or with an app.json setting, before calling logInWithReadPermissionsAsync . See the docs for more information.

I’m not sure exactly how that would impact on your issue, but it seems to me to be related.

4

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