You should GenerateDiceData first
UnityEngine.Debug:LogError(Object)
exTextureInfo:BeginDiceData() (at Assets/ex2D/Runtime/Assets/exTextureInfo.cs:427)
exAtlasEditor:LayoutAtlasElements(Boolean) (at Assets/ex2D/Editor/exAtlasEditor.cs:1135)
exAtlasEditor:OnGUI() (at Assets/ex2D/Editor/exAtlasEditor.cs:195)
UnityEditor.DockArea:OnGUI()
NullReferenceException: Object reference not set to an instance of an object
exTextureInfo.GetDiceData (Int32 _diceIndex) (at Assets/ex2D/Runtime/Assets/exTextureInfo.cs:444)
exAtlasUtility.GetElementList (.exAtlas _atlas) (at Assets/ex2D/Editor/Utilities/exAtlasUtility.cs:234)
exAtlasEditor.LayoutAtlasElements (Boolean _forced) (at Assets/ex2D/Editor/exAtlasEditor.cs:1140)
exAtlasEditor.OnGUI () (at Assets/ex2D/Editor/exAtlasEditor.cs:195)
System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) (at /Applications/buildAgent/work/c514da0c8183631c/mcs/class/corlib/System.Reflection/MonoMethod.cs:222)
You should GenerateDiceData first UnityEngine.Debug:LogError(Object) exTextureInfo:BeginDiceData() (at Assets/ex2D/Runtime/Assets/exTextureInfo.cs:427) exAtlasEditor:LayoutAtlasElements(Boolean) (at Assets/ex2D/Editor/exAtlasEditor.cs:1135) exAtlasEditor:OnGUI() (at Assets/ex2D/Editor/exAtlasEditor.cs:195) UnityEditor.DockArea:OnGUI()
NullReferenceException: Object reference not set to an instance of an object exTextureInfo.GetDiceData (Int32 _diceIndex) (at Assets/ex2D/Runtime/Assets/exTextureInfo.cs:444) exAtlasUtility.GetElementList (.exAtlas _atlas) (at Assets/ex2D/Editor/Utilities/exAtlasUtility.cs:234) exAtlasEditor.LayoutAtlasElements (Boolean _forced) (at Assets/ex2D/Editor/exAtlasEditor.cs:1140) exAtlasEditor.OnGUI () (at Assets/ex2D/Editor/exAtlasEditor.cs:195) System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) (at /Applications/buildAgent/work/c514da0c8183631c/mcs/class/corlib/System.Reflection/MonoMethod.cs:222)