Facebook SDK 7.3 login system with Unity 5.3

Question

I am implementing the Facebook SDK in my game created in Unity and I am having many problems. I tried to implement the Facebook login system:

FB.LogInWithReadPermissions(new List<string>() { "public_profile", "email", "user_friends" }, AuthCallBack);

Only the following errors appeared:

Nullreferenceexception: Object Reference not set to an instance of an Object

Nullreferenceexception: Object Reference not set to an instance of an Object Unityengine.GUILayoutEntry.Applystylesettings (Unityengine.Guistyle style) (at
C:/buildslave/Unity/build/Runtime/IMGUI/Managed/Guilayoututility.Cs:507) UnityEngine.GUILayoutGroup.ApplyStyleSettings (UnityEngine.GUIStyle style) (at C:/buildslave/Unity/build/Runtime/IMGUI/Managed/Guilayoututility.Cs:626) Unityengine.GUILayoutEntry.set_style (Unityengine.Guistyle value) (at C:/buildslave/Unity/build/Runtime/IMGUI/Managed/Guilayoututility.Cs:471) UnityEngine.GUILayoutUtility.BeginWindow (Int32 windowID, Unityengine.Guistyle style, Unityengine.Guilayoutoption[] options) (at C:/buildslave/Unity/build/Runtime/IMGUI/Managed/Guilayoututility.Cs:91) Unityengine.GUI.Callwindowdelegate (Unityengine.Windowfunction func, Int32 id, Unityengine.Guiskin _skin, Int32 forceRect, Single width, Single height, Unityengine.Guistyle style) (at C:/buildslave/Unity/build/Runtime/IMGUI/Managed/GUI.Cs:1862)

Argumentexception: Getting control 0’s position in a group with only 0 Controls when Doing Repaint
Argumentexception: Getting control 0’s position in a group with only 0 Controls when Doing Repaint Aborting Unityengine.GUILayoutGroup.Getnext () (at C:/buildslave/Unity/build/Runtime/IMGUI/Managed/Guilayoututility.Cs:656) Unityengine.GUILayoutUtility.Dogetrect (Single minWidth, Single single maxwidth, Single minHeight, Single maxheight, Unityengine.Guistyle style, Unityengine.Guilayoutoption[] options) (at C:/buildslave/Unity/build/Runtime/IMGUI/Managed/Guilayoututility.Cs:401) Unityengine.GUILayoutUtility.Getrect (Single width, Single height, Unityengine.Guistyle style, Unityengine.Guilayoutoption[] options) (at C:/buildslave/Unity/build/Runtime/IMGUI/Managed/Guilayoututility.Cs:375) Unityengine.GUILayout.Space (Single pixels) (at C:/buildslave/Unity/build/Runtime/IMGUI/Managed/Guilayout.Cs:247) Facebook.Unity.Editor.EditorFacebookMockDialog.Onguidialog (Int32 windowId) (at Assets/Facebooksdk/SDK/Scripts/Platformeditor/Editorfacebookmockdialog.Cs:90) Unityengine.GUI.Callwindowdelegate (Unityengine.Windowfunction func, Int32 id, Unityengine.Guiskin _skin, Int32 forceRect, Single width, Single height, Unityengine.Guistyle style) (at C:/buildslave/Unity/build/Runtime/IMGUI/Managed/GUI.Cs:1869)

How to solve this?

Answer 1

Sorry to Answer in English, but I had the same Issue and Facebook is already Aware of the bug: https://developers.facebook.com/bugs/412005298997939/

They have a temporal workaround: in Editorfacebookmockdialog.Cs add this to the Begin of the Ongui method:

if (this.modalStyle == null)
{
    this.modalRect = new Rect(10, 10, Screen.width - 20, Screen.height - 20);
    Texture2D texture = new Texture2D(1, 1);
    texture.SetPixel(0, 0, new Color(0.2f, 0.2f, 0.2f, 1.0f));
    texture.Apply();
    this.modalStyle = new GUIStyle(GUI.skin.window);
    this.modalStyle.normal.background = texture;
}

It should end up like this:

public void OnGUI()
{
    if (this.modalStyle == null) {
        this.modalRect = new Rect(10, 10, Screen.width - 20, Screen.height - 20);
        Texture2D texture = new Texture2D(1, 1);
        texture.SetPixel(0, 0, new Color(0.2f, 0.2f, 0.2f, 1.0f));
        texture.Apply();
        this.modalStyle = new GUIStyle(GUI.skin.window);
        this.modalStyle.normal.background = texture;
    }
    GUI.ModalWindow(
            this.GetHashCode(),
            this.modalRect,
            this.OnGUIDialog,
            this.DialogTitle,
            this.modalStyle);
}

They Say they are going to fix this for the next update