Проблема при сброрке проекта в unity

Я подключил БД mysql к проекту на unity. Само подключение и проект работаеют нормально,но при потыке собрать пакет. выдает ошибку:

ArgumentException: The Assembly Google.Protobuf is referenced by MySql.Data ('Assets/Scenes/MySql.Data.dll'). But the dll is not allowed to be included or could not be found. UnityEditor.AssemblyHelper.AddReferencedAssembliesRecurse (System.String assemblyPath, System.Collections.Generic.List1[T] alreadyFoundAssemblies, System.String[] allAssemblyPaths, System.String[] foldersToSearch, System.Collections.Generic.Dictionary2[TKey,TValue] cache, UnityEditor.BuildTarget target) (at <411aa9fd83b6416fab626ca292954771>:0) UnityEditor.AssemblyHelper.AddReferencedAssembliesRecurse (System.String assemblyPath, System.Collections.Generic.List1[T] alreadyFoundAssemblies, System.String[] allAssemblyPaths, System.String[] foldersToSearch, System.Collections.Generic.Dictionary2[TKey,TValue] cache, UnityEditor.BuildTarget target) (at <411aa9fd83b6416fab626ca292954771>:0) UnityEditor.AssemblyHelper.FindAssembliesReferencedBy (System.String[] paths, System.String[] foldersToSearch, UnityEditor.BuildTarget target) (at <411aa9fd83b6416fab626ca292954771>:0) UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr, Boolean&)".Не могу понять в чем проблема в интернете тоже не нашел