CC 2017: Dreamweaver encountered problems while constructing the menus from the current menus.xml file.
I have tried every fix that I have found online so far, including:
• Deleting the current menus.xml file and replacing it with the one in the menus.bak (Dreamweaver says to rename menus.bak but it's a folder)
• Deleting corrupt cache file - my folder in Application Support > Adobe > Dreamweaver CC 2017 is empty
• Opening menus.xml and replacing all instances of && with &&
• Uninstalling and reinstalling Dreamweaver
• Deleting the menus.xml file and restarting Dreamweaver

My problem ended up being a permissions issue. The solution found here worked for me (changed permission on Library > Application Support > Adobe): InDesign CC Start-up Error: "...lack sufficient permissions to access the preferences folders"
