FBSDK Login Error Code: 308 in Objective-C

Question

I keep getting

\"Error Domain=com.facebook.sdk.login Code=308 \"The operation couldn’t be completed. (com.facebook.sdk.login error 308.)\"\"

Answer 1

I'm getting the exact same thing FB SDK 4.6.0 Xcode 7.0 iOS9. All the setup & instructions on the facebook developer site were followed to the letter. None of the above solutions worked for me. I'm finding that the behaviour is worse when you're deploying to the device live and feeding back to the Xcode console while doing the login procedure. It's really pot luck if it actually logs you in or not. It seems to behave in a more predictable way when you just re-launch your app cold after deployment. -Yes this is in fact the case!

When it decides to fail to login it results in the following error:

Error Domain=com.facebook.sdk.login Code=308 "(null)"