iOS Parse Facebook Login error 308 FBSDKLoginBadChallengeString

Question

I\'m trying to implement Facebook login in my iOS app, using Parse.

let permissionsArray = [\"public_profile\", \"email\"]

PFFacebookUtils.logInInBackgroun         


        

Answer 1

I only saw this error when I logged out, then logged back in.

My login and logout code were located in different files, as the relevant UI for login and logout are entirely different, and I had instantiated two separate FBSDKLoginManager instances. Consolidating to only one instance solved the problem for me.