That error occurs if you’re using a blueprint project with no project file - see the relevant section from the Troubleshooting chapter of our UE Docs for more info. The recommendation given in the thread you linked is still the solution.
That error occurs if you’re using a blueprint project with no project file - see the relevant section from the Troubleshooting chapter of our UE Docs for more info. The recommendation given in the thread you linked is still the solution.