Asset was broken at Editor. Unable to restore project

Hi there,
Recently I start new project with SideScroller template.
I was playing with Character controller, and at some point Movement controller stop to display it’s properties and on next Run, Editor was crashed.

Now I can’t open project, it crashes always.

How can I fix it ?
I don’t have a backup of my project.

It’s not a big deal right now, cause I just start a project.

But what should I do if it happens next time and I will have something to lose ? Is using source control is mandatory for ue4 project ? which one is best to use ?

Thanks.

I know its very late but
Would like to suggest just a way around.You can copy your content folder to a new project and then open up the new project so that you can continue to work on it.This might not resolve your issue but it will help you to recover some of your files if you are in hurry!!.

Try renaming the “saved” folder of you affected project usually you can find it in the “C/user/“pcname”/documents/unreal projects/“projectname”” in explorer to something else and then start the project.Sometimes this might also resolve the issue.