could not create~/library/application support/adobe/coresync, could not create~/library/application support/adobe/coresync

Try below steps

Click on Finder and then hold Command + Shift + G keys on your keypad

It will open Go to folder window, type  exactly ~/Library and click on Go. Make sure to include ~

Then open Application Support

Right click on Adobe folder

Click on get info

Click on symbol and Add Administrator and your current user name ( if not added )

Then give read and write permission to user name and admin

Then click on Gear icon and select 'Apply to Enclosed

Then check if you are getting same error again