After Update FB SDK 7.3.0, FBlogin() is not working. It is showing error dialog.

Hello buddies, Plz help me , recently I have updated my Facebook SDK 6.2.0 to 7.3.0 and after updating I am not getting login dialog window on android mobile but share windows is working perfectly, there are various changes in SDK 7.3.0 all API gets changed but I have successfully implemented again. void FBLogin () { FB.FacebookImpl .LogInWithReadPermissions (new List () { "public_profile", "email", "user_friends" }, AuthCallback); } While I am calling above login method on OnGUI() method giving a FB dialog window which has an error as shown in screenshot below.

Please help me guys any help will be appreciated. Thanks Sumit