I created a small simple project yesterday and when I tried to open it today I got the attached error message. After I dismiss the error it then opens up the default blank project. I've used B4A since version 1 and never had this happen. I'm using 4.30 and Win 8.1. I can open other projects so it's something with this one. I can easily re-create it but I'm worried it might happen to a more complex project.