Editor Stuck at 75% loading?

Development Programming & Scripting C++
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1

I tried to open my project, compiles fine in VS. The project hangs at 75% and uses no CPU. I opened a different project and it starts up fine and very quick. How do I troubleshoot this?

Most of the work was done in blueprints, apart from simple base classes in c++. I am not creating object instances in the c++ base classes.

2

Launch the Editor process from Visual Studio to debug it.
At 75% stuff from PostEngineInit step is generated.

3

How do I launch the editor from VS? I tried googling this and found nothing.
EDIT: Nvm I see what you mean, hitting f5.

4

This is the last entry in the debug log. Not sure what this tells me.

ā€˜UE4Editor.exeā€™ (Win32): Loaded ā€˜C:\UnrealProjectsC\RPGPrototype\Binaries\Win64\UE4Editor-RPGPrototype-0003.dllā€™. Symbols loaded.
The thread 0x3ff4 has exited with code 0 (0x0).
The thread 0x53d0 has exited with code 0 (0x0).
The thread 0x3288 has exited with code 0 (0x0).
The thread 0x539c has exited with code 0 (0x0).
The thread 0x5134 has exited with code 0 (0x0).

5

Do NOT use hot reloading, unless you are using Magic Nodes :wink:

Changing the structure of your GameFramework classes and compiling with Editor open will cause problems like these.

(Magic Node classes have a bypass against that).

Classic C++ programming in Unrealā€¦ just keep the editor closed while you are making changes to header files, really.

Btw, clean up your binaries with editor closed then recompile your solution to fix it.

6

Unfortunately Iā€™m still getting the issue even after deleting binaries and recompiling. I think the project is corruptedā€¦

*EDIT: Managed to get the project to open when finding and deleting the lineā€¦

static ConstructorHelpers::FObjectFinder Melee2hAxeAttackMontageObject(TEXT(ā€œAnimMontageā€™/Game/Mannequin/Animations/ThirdPerson_2h_Axe_Attack.ThirdPerson_2h_Axe_Attackā€™ā€));

2 Likes
7

I wanted to chime in here because my project suddenly started doing this today after making a duplicate of a BP gamemode and setting that as the new gamemode (both of which were a C++ class. Removing the lines

//static ConstructorHelpers::FClassFinder<APawn> PlayerPawnClassFinder(TEXT("/Game/FirstPerson/Blueprints/BP_FirstPersonCharacter"));
	//DefaultPawnClass = PlayerPawnClassFinder.Class;

Fixed the issue. Not sure why

8

How I fixed it.