It was announced on December 12th, 2014 that the Google Earth API has been deprecated. Recently, Google Earth has stopped working properly with BaseCamp. It appears that Google intentionally removed the ability for BaseCamp to find it.
If you attempt to view data from BaseCamp, you will get an error message stating that Google Earth is not found on the Computer. We will handle this better in the future.
In the meantime, if you simply launch Google Earth first, BaseCamp will find the application and all functionality should work.