WebUI build is completed, but not work

[AlexandrZabolotny]

Hello! My OS - Ubuntu 18.04

When I follow step 12 In Unity Editor run Build WebUi... in Unity: Simulator -> Build WebUI... I see in consol

WebUI build is completed
UnityEngine.Debug:Log(Object)
Simulator.Editor.BuildWebUI:Build() (at Assets/Scripts/Editor/BuildWebUI.cs:60)

But I can not see "build dialog" And next - when I follow step 13 Open Build... in Unity: Simulator -> Build... I see error

Exception: WebUI files are missing! Please build WebUI at least once before building Player Simulator.Editor.Build.RunPlayerBuild (Simulator.Editor.Build+BuildTarget target, System.String folder, System.Boolean development) (at Assets/Scripts/Editor/Build.cs:737) Simulator.Editor.Build.OnGUI () (at Assets/Scripts/Editor/Build.cs:563) System.Reflection.MonoMethod.Invoke (System.Object obj, System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) (at <437ba245d8404784b9fbab9b439ac908>:0) Rethrow as TargetInvocationException: Exception has been thrown by the target of an invocation. System.Reflection.MonoMethod.Invoke (System.Object obj, System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) (at <437ba245d8404784b9fbab9b439ac908>:0) System.Reflection.MethodBase.Invoke (System.Object obj, System.Object[] parameters) (at <437ba245d8404784b9fbab9b439ac908>:0) UnityEditor.HostView.Invoke (System.String methodName, System.Object obj) (at /home/builduser/buildslave/unity/build/Editor/Mono/HostView.cs:367) UnityEditor.HostView.Invoke (System.String methodName) (at /home/builduser/buildslave/unity/build/Editor/Mono/HostView.cs:361) UnityEditor.HostView.InvokeOnGUI (UnityEngine.Rect onGUIPosition, UnityEngine.Rect viewRect) (at /home/builduser/buildslave/unity/build/Editor/Mono/HostView.cs:337) UnityEditor.DockArea.DrawView (UnityEngine.Rect viewRect, UnityEngine.Rect dockAreaRect) (at /home/builduser/buildslave/unity/build/Editor/Mono/GUI/DockArea.cs:356) UnityEditor.DockArea.OldOnGUI () (at /home/builduser/buildslave/unity/build/Editor/Mono/GUI/DockArea.cs:346) UnityEngine.UIElements.IMGUIContainer.DoOnGUI (UnityEngine.Event evt, UnityEngine.Matrix4x4 parentTransform, UnityEngine.Rect clippingRect, System.Boolean isComputingLayout, UnityEngine.Rect layoutSize, System.Boolean canAffectFocus) (at /home/builduser/buildslave/unity/build/Modules/UIElements/IMGUIContainer.cs:293) UnityEngine.UIElements.IMGUIContainer.HandleIMGUIEvent (UnityEngine.Event e, UnityEngine.Matrix4x4 worldTransform, UnityEngine.Rect clippingRect, System.Boolean canAffectFocus) (at /home/builduser/buildslave/unity/build/Modules/UIElements/IMGUIContainer.cs:503) UnityEngine.UIElements.IMGUIContainer.HandleIMGUIEvent (UnityEngine.Event e, System.Boolean canAffectFocus) (at /home/builduser/buildslave/unity/build/Modules/UIElements/IMGUIContainer.cs:486) UnityEngine.UIElements.IMGUIContainer.SendEventToIMGUI (UnityEngine.UIElements.EventBase evt, System.Boolean canAffectFocus) (at /home/builduser/buildslave/unity/build/Modules/UIElements/IMGUIContainer.cs:477) UnityEngine.UIElements.IMGUIContainer.HandleEvent (UnityEngine.UIElements.EventBase evt) (at /home/builduser/buildslave/unity/build/Modules/UIElements/IMGUIContainer.cs:449) UnityEngine.UIElements.CallbackEventHandler.HandleEventAtTargetPhase (UnityEngine.UIElements.EventBase evt) (at /home/builduser/buildslave/unity/build/Modules/UIElements/Events/EventHandler.cs:77) UnityEngine.UIElements.MouseCaptureDispatchingStrategy.DispatchEvent (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel) (at /home/builduser/buildslave/unity/build/Modules/UIElements/Events/MouseCaptureDispatchingStrategy.cs:92) UnityEngine.UIElements.EventDispatcher.ProcessEvent (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel) (at /home/builduser/buildslave/unity/build/Modules/UIElements/EventDispatcher.cs:277) UnityEngine.UIElements.EventDispatcher.ProcessEventQueue () (at /home/builduser/buildslave/unity/build/Modules/UIElements/EventDispatcher.cs:238) UnityEngine.UIElements.EventDispatcher.OpenGate () (at /home/builduser/buildslave/unity/build/Modules/UIElements/EventDispatcher.cs:203) UnityEngine.UIElements.EventDispatcherGate.Dispose () (at /home/builduser/buildslave/unity/build/Modules/UIElements/EventDispatcher.cs:44) UnityEngine.UIElements.EventDispatcher.ProcessEvent (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel) (at /home/builduser/buildslave/unity/build/Modules/UIElements/EventDispatcher.cs:310) UnityEngine.UIElements.EventDispatcher.Dispatch (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel, UnityEngine.UIElements.DispatchMode dispatchMode) (at /home/builduser/buildslave/unity/build/Modules/UIElements/EventDispatcher.cs:159) UnityEngine.UIElements.BaseVisualElementPanel.SendEvent (UnityEngine.UIElements.EventBase e, UnityEngine.UIElements.DispatchMode dispatchMode) (at /home/builduser/buildslave/unity/build/Modules/UIElements/Panel.cs:256) UnityEngine.UIElements.UIElementsUtility.DoDispatch (UnityEngine.UIElements.BaseVisualElementPanel panel) (at /home/builduser/buildslave/unity/build/Modules/UIElements/UIElementsUtility.bindings.cs:404) UnityEngine.UIElements.UIElementsUtility.ProcessEvent (System.Int32 instanceID, System.IntPtr nativeEventPtr) (at /home/builduser/buildslave/unity/build/Modules/UIElements/UIElementsUtility.bindings.cs:194) UnityEngine.GUIUtility.ProcessEvent (System.Int32 instanceID, System.IntPtr nativeEventPtr) (at /home/builduser/buildslave/unity/build/Modules/IMGUI/GUIUtility.cs:187)

[EricBoiseLGSVL]

@AlexandrZabolotny Hello and welcome to LGSVL Simulator. Please see #759 and see if it helps

[AlexandrZabolotny]

Thanks! I reinstall npm

1. sudo apt install npm Next in /simulator/WebUI I open terminal
2. npm install
3. npm pack

And all work