I keep getting
\"Error Domain=com.facebook.sdk.login Code=308 \"The operation couldn’t be completed. (com.facebook.sdk.login error 308.)\"\"
I had exactly the same problem and was able to find the solution by modifying the Info.plist
I've added all the possible schemes to LSApplicationQueriesSchemes
The complete list looks like this:
LSApplicationQueriesSchemes
fbapi
fbapi20130214
fbapi20130410
fbapi20130702
fbapi20131010
fbapi20131219
fbapi20140410
fbapi20140116
fbapi20150313
fbapi20150629
fbauth
fbauth2
fb
fb-messenger-api20140430
fb-messenger-platform-20150128
fb-messenger-platform-20150218
fb-messenger-platform-20150305
fb-messenger-api
fbshareextension