Crash, can't open the project. Recreate, still crash

Development Programming & Scripting Blueprint
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1

Hi, I’m making a game with unreal 4. 2 days ago when I was working on the last blueprint part, the system crashed. Then I tried to reopen the project, the crash report appeared at 50%.

I have tried to delete saved file and intermediate file, reopen it in MAC system, but it still crashes. Everything goes fine if I open a different project. What should I do?

This are the information in my crash repoter:

MachineId:EC22025E48DA7EDCB3D2A28019BF5E25
EpicAccountId:cb81d4bc44b04f339e590e10afa8a1c5
You do not have any debugging symbols required to display the callstack for this crash.

2

Please download the debugging symbols and post the callstack here, otherwise Epic staff can’t help you.