I though so, I had the same thing happen to me last week.
I had to restore my B4A SDK Manager folder from a backup device, then I installed the recommended updates again it worked perfect the second time if asking. Don't ask me why it didn't work the first time of asking.
All I can think of is removing the folder and doing a fresh install from scratch.
I have an auto backup system that backs everything up to 2 seperate backup drive for me every 2/4 hours, that way I can just copy everything over to my second laptop and it's up to date and ready to start coding in just a few minutes.