Element type is invalid; BasePropertyComponent error

[petrakoww]

Did you find any solutions regarding those two issues:
##25
##4
Javascript Error

Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: undefined. You likely forgot to export your component from the file it's defined in, or you might have mixed up default and named imports. Check the render method of BasePropertyComponent.
See development console for more details...

[petrakoww]

#SoftwareBrothers/adminjs#605 (comment)
Deleting the .adminjs folder seems to have fixed the issue.