Particle dev 1.5.1 not compiling anything

Just updated to the latest 1.5.1 of your Atom based, particle dev IDE and I can’t seem to compile any sketch.

Not even a blank sketch
I keep getting these same errors.

Have you selected your target device?
I can’t see that in the status bar.

And if you look at the error message, this tells you that the source shown and the file causing the error are not the same.

BTW: When you provide a screenshot of the Dev window, try to get everything on it too.