Falling back to loading access token from NSUserDefaults because of simulator bug

Question

Xcode log show the above error while running in Xcode 8.1, ios 10.1. Is there any problem or should I ignore and continue?

Solution 1

I have this problem, too. It seems to be caused by an the Facebook SDK's Login Access Token. It caches just fine on a real device, but not on the simulators. Try running the app from a physical device.

Solution 2

You can ignore this warning, it's hard coded in the FacebookSDK when using the iOS Simulator. The SDK does contain a bug though which prevents the simulator from caching the access token.

You can fix this by adding the following line:

key = [NSString stringWithFormat:@"%@_fix", key];

in FBSDKKeychainStore.m:94 and FBSDKKeychainStore.m:135 just before:

[[NSUserDefaults standardUserDefaults] setObject:value forKey:key];

Solution 3

I had the same problem. I tried to run in real device and this show error with OAuth Login Then I just turn OAuth Login on and everything works well

Comments

[AndrewHenderson]

I can't seem to locate that file in my filesystem. Is this still accurate with version React Native >=0.37?

[AndrewHenderson]

My React Native app continues to run just fine on the physical device. Is there any fix to get it running again on the simulator?

[Jorn van Dijk]

I don't know which version React Native is using. I'm referring to github.com/facebook/facebook-ios-sdk/blob/….

[ibtokin]

Try uninstalling it on the simulator and running again. I can get it to work, but I have to uninstall it each time. Your results may vary.

[jungledev]

Is this really a fix? You're still storing the key in NSUserDefaults. I would only consider this a fix if you're able to provide a solution that modifies the code to work in the simulator the same way it would on a real device

[Gowtham]

where can i found FBSDKKeychainStore.m file?

[eemrah]

how did you even test the login status before the problem if it was disabled for OAuth Login?

[eemrah]

@gowtham in project, you can search it with CMD + Shift + O