I downloaded the Japan topo .img file. Then I followed the steps, once I was able to find MapsetToolkit, per the web page
https://www.gpsfiledepot.com/tutorials/how-to-load-.img-files-into-mapsource-with-mapsettoolkit/
MapsetToolkit went through the steps and the DOS windows and came up as complete. I see the Mapset installed in the small window. Then when I started BaseCamp, it came up with "There is a problem with the Japan installation. Please re-install and start BaseCamp again."
I did this a couple of times by uninstalling Japan from the Mapset installed window of MapsetToolkit. Still getting the error.
Nice thing is if I uninstall Japan and then try to open up BaseCamp, BaseCamp works fine.
https://www.gpsfiledepot.com/tutorials/how-to-load-.img-files-into-mapsource-with-mapsettoolkit/
MapsetToolkit went through the steps and the DOS windows and came up as complete. I see the Mapset installed in the small window. Then when I started BaseCamp, it came up with "There is a problem with the Japan installation. Please re-install and start BaseCamp again."
I did this a couple of times by uninstalling Japan from the Mapset installed window of MapsetToolkit. Still getting the error.
Nice thing is if I uninstall Japan and then try to open up BaseCamp, BaseCamp works fine.