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

My solution on Xcode7.1, Swift2.0

Step 1. Clean your build folder: option + command + K

or: Choose Product > Clean

Step 2. Clean your derived data: Choose Window > Projects:

and then choose Delete: