Hi,
I am working through this nice tutorial-series here (http://minalien.com/unreal-engine-4-creating-menus-with-slatec-part-1/) to get familiar with Slate. Currently I am looking into Styles (Part 2 of the tutorial). However for a few days my work has come to a stop because for some reason my game crashes on startup when I try to use my Menu-HUD. It compiles fine though.
This is the error-message I get.
MachineId:5D84F11B4594BE27D2EB1FAE8AA52A47
EpicAccountId:bf70be912eaa4f08b31cadf618d3ce56
Unknown exception - code 00000001 (first/second chance not available)
Assertion failed: IsValid() [File:D:\Program Files\Unreal Engine\4.5\Engine\Source\Runtime\Core\Public\Templates\SharedPointer.h] [Line: 647]
KERNELBASE + 37901 bytes
UE4Editor_Core + 3174852 bytes
UE4Editor_Core + 1677512 bytes
UE4Editor_Core + 1566866 bytes
UE4Editor_PhunkGame_1661!FMenuStyles::Get() + 49 bytes [d:\users\hammelgammel.pc\documents\unreal projects\phunkgame\source\phunkgame\private\menustyles.cpp:42]
UE4Editor_PhunkGame_1661!SPhunkGameUI::Construct() + 132 bytes [d:\users\hammelgammel.pc\documents\unreal projects\phunkgame\source\phunkgame\private\phunkgameui.cpp:15]
UE4Editor_PhunkGame_1661!TDecl<SPhunkGameUI,RequiredArgs::T0RequiredArgs>::operator<<=() + 138 bytes [d:\program files\unreal engine\4.5\engine\source\runtime\slatecore\public\widgets\declarativesyntaxsupport.h:1321]
UE4Editor_PhunkGame_1661!APhunkGameMainMenuHUD::PostInitializeComponents() + 218 bytes [d:\users\hammelgammel.pc\documents\unreal projects\phunkgame\source\phunkgame\private\phunkgamemainmenuhud.cpp:22]
UE4Editor_Engine + 1807133 bytes
UE4Editor_Engine + 1814466 bytes
UE4Editor_Engine + 5087211 bytes
UE4Editor_Engine + 6270047 bytes
UE4Editor_Engine + 1086054 bytes
UE4Editor_CoreUObject + 549780 bytes
UE4Editor_CoreUObject + 1438322 bytes
UE4Editor_Engine + 1818193 bytes
UE4Editor_Engine + 16885913 bytes
UE4Editor_Engine + 3883871 bytes
UE4Editor_Engine + 3828248 bytes
UE4Editor_Engine + 5088808 bytes
UE4Editor_Engine + 5610996 bytes
UE4Editor_Engine + 3885659 bytes
UE4Editor_UnrealEd + 4144983 bytes
UE4Editor_UnrealEd + 4429648 bytes
UE4Editor_UnrealEd + 4526262 bytes
UE4Editor_UnrealEd + 1893329 bytes
UE4Editor_UnrealEd + 6486374 bytes
UE4Editor!FEngineLoop::Tick() + 3524 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.5\engine\source\runtime\launch\private\launchengineloop.cpp:2129]
UE4Editor!GuardedMain() + 479 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.5\engine\source\runtime\launch\private\launch.cpp:133]
UE4Editor!GuardedMainWrapper() + 26 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.5\engine\source\runtime\launch\private\windows\launchwindows.cpp:125]
UE4Editor!WinMain() + 249 bytes [d:\buildfarm\buildmachine_++depot+ue4-releases+4.5\engine\source\runtime\launch\private\windows\launchwindows.cpp:201]
UE4Editor!__tmainCRTStartup() + 329 bytes [f:\dd\vctools\crt\crtw32\dllstuff\crtexe.c:618]
From what I am reading there, I assume there is a problem with a pointer. And since commenting this line
“MenuStyle = &FMenuStyles::Get().GetWidgetStyle(“Global”);”
stops the crashes (I can’t use my Style though), and it generally always crashes whenever I call the get()-function of the MenuStyles-class it must be something with the “MenuStylesInstance”-pointer. So the problem probably lies within the “MenuStyles”-class. But I can’t for the life of me figure it out. I have the same files in the same folders as the Tutorial, so it is probably not something related to the actual files. I downloaded the finished files from the tutorial-site and it worked fine on 4.5 so it definitly is me doing something wrong here.
Those should be the important files. I guess the problem is in MenuStlyes.
MenuStyles.h
#pragma once
class FMenuStyles
{
public:
static void Initialize();
static void Shutdown();
static const class ISlateStyle& Get();
static FName GetStyleSetName();
private:
static TSharedRef<class FSlateStyleSet> Create();
static TSharedPtr<class FSlateStyleSet> MenuStyleInstance;
};
MenuStyles.cpp
#include "PhunkGame.h"
#include "MenuStyles.h"
#include "Slate.h"
#include "SlateGameResources.h"
TSharedPtr<FSlateStyleSet> FMenuStyles::MenuStyleInstance;
void FMenuStyles::Initialize()
{
if (!MenuStyleInstance.IsValid())
{
MenuStyleInstance = Create();
FSlateStyleRegistry::RegisterSlateStyle(*MenuStyleInstance);
}
}
void FMenuStyles::Shutdown()
{
FSlateStyleRegistry::UnRegisterSlateStyle(*MenuStyleInstance);
ensure(MenuStyleInstance.IsUnique());
MenuStyleInstance.Reset();
}
FName FMenuStyles::GetStyleSetName()
{
static FName StyleSetName(TEXT("MenuStyles"));
return StyleSetName;
}
TSharedRef<FSlateStyleSet> FMenuStyles::Create()
{
TSharedRef<FSlateStyleSet> StyleRef = FSlateGameResources::New(FMenuStyles::GetStyleSetName(), "/Game/UI/Styles", "/Game/UI/Styles");
return StyleRef;
}
const ISlateStyle& FMenuStyles::Get()
{
return *MenuStyleInstance;
}
PhunkGameUI.h
#pragma once
#include "Slate.h"
class SPhunkGameUI : public SCompoundWidget
{
SLATE_BEGIN_ARGS(SPhunkGameUI)
: _MenuHUD()
{
}
SLATE_ARGUMENT(TWeakObjectPtr<class APhunkGameMainMenuHUD>, MenuHUD);
SLATE_END_ARGS()
public:
void Construct(const FArguments& args);
private:
FReply PlayGameClicked();
FReply QuitGameClicked();
TWeakObjectPtr<class APhunkGameMainMenuHUD> MenuHUD;
const struct FGlobalStyle* MenuStyle;
};
PhunkGameUI.cpp
#include "PhunkGame.h"
#include "PhunkGameMainMenuHUD.h"
#include "PhunkGameUI.h"
#include "GlobalMenuStyle.h"
#include "MenuStyles.h"
void SPhunkGameUI::Construct(const FArguments& args)
{
MenuHUD = args._MenuHUD;
MenuStyle = &FMenuStyles::Get().GetWidgetStyle<FGlobalStyle>("Global");
ChildSlot
SNew(SOverlay)
+ SOverlay::Slot()
.HAlign(HAlign_Center)
.VAlign(VAlign_Top)
SNew(STextBlock)
//.TextStyle(&MenuStyle->MenuTitleStyle)
.Text(FText::FromString("Hauptmenue"))
]
+ SOverlay::Slot()
.HAlign(HAlign_Right)
.VAlign(VAlign_Bottom)
SNew(SVerticalBox)
+ SVerticalBox::Slot()
SNew(SButton)
//.ButtonStyle(&MenuStyle->MenuButtonStyle)
//.TextStyle(&MenuStyle->MenuButtonTextStyle)
.Text(FText::FromString("Spiel starten"))
.OnClicked(this, &SPhunkGameUI::PlayGameClicked)
]
+ SVerticalBox::Slot()
SNew(SButton)
//.ButtonStyle(&MenuStyle->MenuButtonStyle)
//.TextStyle(&MenuStyle->MenuButtonTextStyle)
.Text(FText::FromString("Spiel beenden"))
.OnClicked(this, &SPhunkGameUI::QuitGameClicked)
]
]
];
}
FReply SPhunkGameUI::PlayGameClicked()
{
MenuHUD->PlayGameClicked();
return FReply::Handled();
}
FReply SPhunkGameUI::QuitGameClicked()
{
MenuHUD->QuitGameClicked();
return FReply::Handled();
}
I hope I didn’t post too much. But I tried to provide every info necessary. It is probably something very simple I am missing, but I can’t find it. I hope one of you does. Thank you very much in advance! 
