We are currently having problems with a “pure virtual function call” crash of the editor. The crash is intermittent and cannot be reproduced at will.
I can’t be sure whether it is MY code that’s causing it or some other 3rd party script.
Could you please give some guidance on what to look for in C# code that might be causing the crash?
It hasn’t been seen prior to 5.3.6 so I thought one of the patches might fix it. Currently we are on 5.3.6p3 (still happens). I am quite sure that I haven’t introduced code that is very different from the code I’ve been writing prior to 5.3.6 so I am confident it’s not C#.
I would be grateful if you’d prove me wrong so I can go fix it.
I’m getting the same thing in 5.5, seems to happen randomly every few hours without being triggered by any particular thing I can find. I think I remember seeing it happen once or twice in previous versions but it’s a lot more common now. Has anyone found the cause of this yet?
This is a C++ error and I don’t think there’s anything you’re doing that triggers it or anything you can do to avoid it. It’s a bug in the Unity editor and/or engine. This occurs when a C++ function tries to call a pure virtual function (one declared virtual and with the = 0 marker signifying it has no implementation in this class) on an uninitialized object. For example, from the constructor of a base class.
