iCloud Drive on the Web won't let me drag and drop
I paid for the 200GB of iCloud storage and created some test folders on iCloud Drive just to make sure the iCloud.Com iCloud Drive app works as well as Dropbox's online version. It is nearly as good, but iCloud Drive on the web won't let me upload folders (by drag and drop) from finder to the web iCloud app. Apple says you can drag and drop.
It tells me that "This type of file needs to be compressed before it is uploaded". I'm going crazy! I need to be able to drag and drop or use the upload button to upload FOLDERS...not just files. But it gives me this message every time, even for a folder with one .pdf inside.
Please help!
Thanks
MacBook Air, OS X Yosemite (10.10)