There is a small bug. This error message reported that the pointed element was invalid. A simple IsValid here should do the trick I think
I’m also getting the following warnings from the UI kit when packing for shipping:
UE4Editor-Cmd: [2017.03.14-06.54.12:470] 0]LogBlueprint:Warning: [Compiler GradientBar_Base] Warning Node K2Node_EaseFunction_5 . The node won’t be pruned as isolated one. The node is not pure, but it has no exec pin(s). Verify IsNodePure implementation in K2Node Ease Function.
UE4Editor-Cmd: [2017.03.14-06.54.12:471] 0]LogBlueprint:Warning: [Compiler GradientBar_Base] Warning Node K2Node_EaseFunction_5 . The node won’t be pruned as isolated one. The node is not pure, but it has no exec pin(s). Verify IsNodePure implementation in K2Node Ease Function.
UE4Editor-Cmd: [2017.03.14-06.54.12:482] 0]LogBlueprint:Warning: [Compiler GradientBar_Base] Warning [0018.07] Compile of GradientBar_Base successful, but with 2 Warning(s) [in 13 ms] (/Game/UI_Kit/Widgets/GradientBars/GradientBar_Base.GradientBar_Base)
UE4Editor-Cmd: [2017.03.14-06.54.12:491] 0]LogBlueprint:Warning: [Compiler GradientBar_Base] Warning [0018.08] Compile of GradientBar_Base successful, but with 3 Warning(s) [in 0 ms] (/Game/UI_Kit/Widgets/GradientBars/GradientBar_Base.GradientBar_Base)
UE4Editor-Cmd: [2017.03.14-06.54.12:501] 0]LogBlueprint:Warning: [Compiler GradientBar_Base] Warning [0018.09] Compile of GradientBar_Base successful, but with 4 Warning(s) [in 0 ms] (/Game/UI_Kit/Widgets/GradientBars/GradientBar_Base.GradientBar_Base)
UE4Editor-Cmd: [2017.03.14-06.54.12:916] 0]LogBlueprint:Warning: [Compiler TalentSlot] Warning ‘Item’ is already a ‘Talent Tree’, you don’t need K2Node_DynamicCast_1198 .
UE4Editor-Cmd: [2017.03.14-06.54.12:924] 0]LogBlueprint:Warning: [Compiler TalentSlot] Warning [0018.51] Compile of TalentSlot successful, but with 1 Warning(s) [in 12 ms] (/Game/UI_Kit/Widgets/TalentTree/TalentSlot.TalentSlot)
UE4Editor-Cmd: [2017.03.14-06.54.12:931] 0]LogBlueprint:Warning: [Compiler TalentSlot] Warning [0018.52] Compile of TalentSlot successful, but with 2 Warning(s) [in 0 ms] (/Game/UI_Kit/Widgets/TalentTree/TalentSlot.TalentSlot)
UE4Editor-Cmd: [2017.03.14-06.54.12:941] 0]LogBlueprint:Warning: [Compiler TalentSlot] Warning [0018.53] Compile of TalentSlot successful, but with 3 Warning(s) [in 0 ms] (/Game/UI_Kit/Widgets/TalentTree/TalentSlot.TalentSlot)
UE4Editor-Cmd: [2017.03.14-06.54.13:589] 0]LogBlueprint:Warning: [Compiler PrototypeUI_Controller] Warning K2Node_CallFunction_10567 is deprecated; Use the new version of Set Input Mode Game And UI instead
UE4Editor-Cmd: [2017.03.14-06.54.13:602] 0]LogBlueprint:Warning: [Compiler PrototypeUI_Controller] Warning [0019.19] Compile of PrototypeUI_Controller successful, but with 1 Warning(s) [in 31 ms] (/Game/UI_Kit/Blueprints/PrototypeUI_Controller.PrototypeUI_Controller)
UE4Editor-Cmd: [2017.03.14-06.54.13:614] 0]LogBlueprint:Warning: [Compiler PrototypeUI_Controller] Warning [0019.20] Compile of PrototypeUI_Controller successful, but with 2 Warning(s) [in 2 ms] (/Game/UI_Kit/Blueprints/PrototypeUI_Controller.PrototypeUI_Controller)
UE4Editor-Cmd: [2017.03.14-06.54.13:621] 0]LogBlueprint:Warning: [Compiler PrototypeUI_Controller] Warning [0019.21] Compile of PrototypeUI_Controller successful, but with 3 Warning(s) [in 0 ms] (/Game/UI_Kit/Blueprints/PrototypeUI_Controller.PrototypeUI_Controller)
UE4Editor-Cmd: [2017.03.14-06.54.16:214] 0]LogBlueprintDebug:Display: Encountered a blueprint breakpoint in /Game/Client/UserInterface/HUD/HUD/LowerControlWindow.LowerControlWindow without an associated node. The blueprint has been remoevd
UE4Editor-Cmd: [2017.03.14-06.54.27:992] 0]LogBlueprint:Warning: [Compiler GradientBar_Base] Warning Node K2Node_EaseFunction_5 . The node won’t be pruned as isolated one. The node is not pure, but it has no exec pin(s). Verify IsNodePure implementation in K2Node Ease Function.
UE4Editor-Cmd: [2017.03.14-06.54.27:998] 0]LogBlueprint:Warning: [Compiler GradientBar_Base] Warning Node K2Node_EaseFunction_5 . The node won’t be pruned as isolated one. The node is not pure, but it has no exec pin(s). Verify IsNodePure implementation in K2Node Ease Function.
UE4Editor-Cmd: [2017.03.14-06.54.28:009] 0]LogBlueprint:Warning: [Compiler GradientBar_Base] Warning [0033.59] Compile of GradientBar_Base successful, but with 2 Warning(s) [in 19 ms] (/Game/UI_Kit/Widgets/GradientBars/GradientBar_Base.GradientBar_Base)
UE4Editor-Cmd: [2017.03.14-06.54.28:018] 0]LogBlueprint:Warning: [Compiler GradientBar_Base] Warning [0033.60] Compile of GradientBar_Base successful, but with 3 Warning(s) [in 0 ms] (/Game/UI_Kit/Widgets/GradientBars/GradientBar_Base.GradientBar_Base)
UE4Editor-Cmd: [2017.03.14-06.54.28:030] 0]LogBlueprint:Warning: [Compiler GradientBar_Base] Warning [0033.61] Compile of GradientBar_Base successful, but with 4 Warning(s) [in 1 ms] (/Game/UI_Kit/Widgets/GradientBars/GradientBar_Base.GradientBar_Base)
UE4Editor-Cmd: [2017.03.14-06.54.28:056] 0]LogBlueprint:Warning: [Compiler PrototypeUI_Controller] Warning K2Node_CallFunction_10567 is deprecated; Use the new version of Set Input Mode Game And UI instead
UE4Editor-Cmd: [2017.03.14-06.54.28:070] 0]LogBlueprint:Warning: [Compiler PrototypeUI_Controller] Warning [0033.66] Compile of PrototypeUI_Controller successful, but with 1 Warning(s) [in 29 ms] (/Game/UI_Kit/Blueprints/PrototypeUI_Controller.PrototypeUI_Controller)
UE4Editor-Cmd: [2017.03.14-06.54.28:078] 0]LogBlueprint:Warning: [Compiler PrototypeUI_Controller] Warning [0033.66] Compile of PrototypeUI_Controller successful, but with 2 Warning(s) [in 0 ms] (/Game/UI_Kit/Blueprints/PrototypeUI_Controller.PrototypeUI_Controller)
UE4Editor-Cmd: [2017.03.14-06.54.28:090] 0]LogBlueprint:Warning: [Compiler PrototypeUI_Controller] Warning [0033.68] Compile of PrototypeUI_Controller successful, but with 3 Warning(s) [in 2 ms] (/Game/UI_Kit/Blueprints/PrototypeUI_Controller.PrototypeUI_Controller)
UE4Editor-Cmd: [2017.03.14-06.54.28:233] 0]LogBlueprint:Warning: [Compiler TalentSlot] Warning ‘Item’ is already a ‘Talent Tree’, you don’t need K2Node_DynamicCast_1198 .
UE4Editor-Cmd: [2017.03.14-06.54.28:240] 0]LogBlueprint:Warning: [Compiler TalentSlot] Warning [0033.82] Compile of TalentSlot successful, but with 1 Warning(s) [in 10 ms] (/Game/UI_Kit/Widgets/TalentTree/TalentSlot.TalentSlot)
UE4Editor-Cmd: [2017.03.14-06.54.28:248] 0]LogBlueprint:Warning: [Compiler TalentSlot] Warning [0033.83] Compile of TalentSlot successful, but with 2 Warning(s) [in 0 ms] (/Game/UI_Kit/Widgets/TalentTree/TalentSlot.TalentSlot)
UE4Editor-Cmd: [2017.03.14-06.54.28:260] 0]LogBlueprint:Warning: [Compiler TalentSlot] Warning [0033.84] Compile of TalentSlot successful, but with 3 Warning(s) [in 2 ms] (/Game/UI_Kit/Widgets/TalentTree/TalentSlot.TalentSlot)
Will these be problematic once I start to use the widgets?