The web app I worked on yesterday crashes Xojo when I open it today. Is there any way to recover all or part of it? The Runtime Error that appears near the end of the progress bar while loading says
Common\ObjectGlue.h.352
Failure Condition: decl2.IsInstance(obj)
The best option is to send it in so they can fix whatever the problem is in the IDE.
It may be possible to open in Arbed, find the issue and fix it, then re-save.
I see you have a currently active Pro license (the little label next to your name), so I’d really recommend you save in source control format and start using a system like git.
It has being mentioned a lot in the forum, Xojo corrupting project files is a thing, you need to have backups and be aware that you can lose hours or days of work since your last backup.
Do yoy have any back up? Check the file size, sometimes xojo corrupts part of the file and sometimes saves it empty or incomplete.