Error: Class not found when unmarshalling: com.facebook.login.Login Client Request

Question

I am getting this error when hitting the \"Login With Facebook\" (Simple login button).

I have Google, and read other topics here - but I can not see any thing mat

Answer 1

I too had this issue. Mine however was a login call made within the FBActivity.OnResume method for callbacks to login after accepting fb perms.

I simply moved the request into the profile tracker in the onCreate method

    ProfileTracker profileTracker = new ProfileTracker() {
        @Override
        protected void onCurrentProfileChanged(Profile oldProfile, Profile currentProfile) {

            Profile.fetchProfileForCurrentAccessToken();
            if(currentProfile != null) {
                String fbUserId = currentProfile.getId();
                profileUrl = currentProfile.getProfilePictureUri(200, 200).toString();
                Log.d("FB profile", "got new/updated profile from thread " + fbUserId);

                // jump if logged in already
                GetFacebookProfileAndJump(currentProfile);

            }

        }
    };

Also ensure your OnCreate super is as follows

    FacebookSdk.sdkInitialize(getApplicationContext());
    mCallbackmanager = CallbackManager.Factory.create();
    super.onCreate(savedInstanceState);

    setContentView(R.layout.activity_fbauth_);

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