Hi all,
I’m in need of a quick fix for a project of mine. I was attempting to switch out the standard Unreal icon logo with a custom icon in Project Settings > Platforms > Windows. I was inexperienced with saving files as .ico, so I just tried saving a simple jpeg with the .ico at the end. When I tried to switch it out, I was immediately met with a crash.
Now whenever I try to go back to Project Settings > Platforms > Windows, the program will instantly crash. Is there something I can do to refresh the settings in that section of Project Settings without having to actually click into it? Can I edit something in the DefaultEngine.ini file that will allow me to solve this issue? I would hate if my entire project was now corrupted from ever going back into that area because of a bad image reference. Any help would be greatly appreciated!
Never mind everyone, I was able to solve my own problem. For anyone who ever comes into this problem, I solved it by going to (Insert Project Directory Name Here) > Build > Windows > Delete the file called “Application”. This converted my project’s icon to the default Unreal icon and the editor no longer crashes.
i have the same problem with yours, where is it and how what do you mean by going to (insert project directory Name Here)>then build>… i couldn’t find figure it out how did you do? please can you elaborate it? thanks, i,m a beginner that’s why in need specific 
you mean in the Project Settings??? Please… thanks
I’m still learning too my friend, so I understand your frustration. I’ll try to be as detailed as possible.
First, find the main project folder that holds all of the files for your project. That’s what the (Insert Project Directory Name Here) was meant to imply. You can tell this is your project folder if when you go into it, there will be folders like Binaries, Build, Config, Content, etc.
Once you navigate into your project folder, Click on the folder titled Build. Inside that folder, go into the folder called Windows. Inside this folder, there should be a file called Application. This is the corrupted file that’s making your project crash. Delete this file and your project should no longer crash when you try to click on the Windows option under the Platform section in your Project Settings.
Let me know if you figure it out!
ha ha ha, i thought in unreal engine editor, so you mean in windows explorer now i got it but in my case i dont have the application.exe what i have found is the icon that i supposed to used then i delete the icon then it works. thank you very much my friend makes me crazy
The corrupted file for me was also an icon file (not an .exe), so I apologize if that wasn’t explained better. I’m glad I could help. Good luck with your development!