Unable to create events after upgrading to latest version of BuddyPress


I recently upgraded BuddyPress to the latest version and now I can't create new events. The 'Publish' button is disabled and I have the following message in the console window:

TypeError: null is not an object (evaluating 'window.tinyMCE.activeEditor.contentDocument')

It was working fine before the upgrade. Can anyone help?

This appears on a local version of WordPress which I am running inside a virtual machine.