I’m in Mojave 10.14.6 with DropDMG version 3.6.6, and get the error:
Error NSInvalidArgumentException
-[NSError boolValue]: unrecognized selector sent to instance 0x60000234f450
I checked the drop settings and saw that is was using an old dev certificate. I selected the correct one, getting the same error, restart DropDMG, same error.
So, I downgraded to DropDMG 3.6.4 and got the window size as described on this page, with the suggestion:
Error The mounted disk image window did not have the correct window size.
The window should have had size {615, 381}, but the size was {0, 0}. This can happen if the Finder did not properly save the window size when DropDMG ejected the disk image. Usually you can simply create the disk image again and it will work. Or, can enter this command:
defaults write com.c-command.DropDMG
LayouterDoubleCheckWindowSize NO
in Terminal (then restart DropDMG) to tell DropDMG not to check that the Finder saved the proper window size. This may be necessary if you are using a Finder haxie such as TotalFinder or XtraFinder that makes it impossible for the Finder window to have the expected size.
I did that but got the Terminal error: -bash: LayouterDoubleCheckWindowSize: command not found
What to do?