NullReferenceException: Object reference not set to an instance of an object
ProBuilder.MeshOperations.pb_ConnectEdges.Connect (ProBuilder.Core.pb_Object pb, IEnumerable`1 edges, ProBuilder.Core.pb_Face[]& addedFaces, ProBuilder.Core.pb_Edge[]& connections, Boolean returnFaces, Boolean returnEdges, System.Collections.Generic.HashSet`1 faceMask) (at C:/Users/karlh/procore/probuilder/probuilder2.0/Assets/ProCore/ProBuilder/Classes/ClassesEditing/pb_ConnectEdges.cs:164)
ProBuilder.MeshOperations.pb_ConnectEdges.Connect (ProBuilder.Core.pb_Object pb, IEnumerable`1 edges, ProBuilder.Core.pb_Edge[]& connections) (at C:/Users/karlh/procore/probuilder/probuilder2.0/Assets/ProCore/ProBuilder/Classes/ClassesEditing/pb_ConnectEdges.cs:53)
ProBuilder.EditorCore.pb_MenuCommands.MenuInsertEdgeLoop (ProBuilder.Core.pb_Object[] selection) (at C:/Users/karlh/procore/probuilder/probuilder2.0/Assets/ProCore/ProBuilder/Editor/EditorCore/pb_MenuCommands.cs:1775)
ProBuilder.Actions.InsertEdgeLoop.DoAction () (at C:/Users/karlh/procore/probuilder/probuilder2.0/Assets/ProCore/ProBuilder/Editor/EditorCore/MenuActions/Geometry/InsertEdgeLoop.cs:44)
ProBuilder.EditorCore.pb_MenuAction.DoButton (Boolean isHorizontal, Boolean showOptions, UnityEngine.Rect& optionsRect, UnityEngine.GUILayoutOption[] layoutOptions) (at C:/Users/karlh/procore/probuilder/probuilder2.0/Assets/ProCore/ProBuilder/Editor/EditorCore/pb_MenuAction.cs:289)
ProBuilder.EditorCore.pb_EditorToolbar.OnGUI () (at C:/Users/karlh/procore/probuilder/probuilder2.0/Assets/ProCore/ProBuilder/Editor/EditorCore/pb_EditorToolbar.cs:365)
ProBuilder.EditorCore.pb_Editor.OnGUI () (at C:/Users/karlh/procore/probuilder/probuilder2.0/Assets/ProCore/ProBuilder/Editor/EditorCore/pb_Editor.cs:377)
System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Reflection/MonoMethod.cs:222)
Rethrow as TargetInvocationException: Exception has been thrown by the target of an invocation.
System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Reflection/MonoMethod.cs:232)
System.Reflection.MethodBase.Invoke (System.Object obj, System.Object[] parameters) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Reflection/MethodBase.cs:115)
UnityEditor.HostView.Invoke (System.String methodName, System.Object obj) (at C:/buildslave/unity/build/Editor/Mono/HostView.cs:291)
UnityEditor.HostView.Invoke (System.String methodName) (at C:/buildslave/unity/build/Editor/Mono/HostView.cs:284)
UnityEditor.HostView.InvokeOnGUI (Rect onGUIPosition) (at C:/buildslave/unity/build/Editor/Mono/HostView.cs:251)