Sharing folders between 2 users I just downloaded a virtual box VM which I will be sharing with my wife. Both my wife and I have accounts on our mac.

I copied the downloaded VM into /Users/Shared/MyNewVM

Then I went into System Preferences -> Sharing and I added /Users/Shared/MyNewVM 

and gave "everyone" the "read/write" permissions.

Now, when I go to Finder and go into /Users/Shared/MyNewVM/VM.vbox and double click it, it gives me the following error:


  You do not have permissions to open document "VM.vbox". Contact your
  computer and network administrator for assistance.


But I gave the permissions ... didn't I?
Select the folder in Finder and open Get Info (⌘I).
Click the padlock in the bottom-right corner of the Get Info window and authenticate.
Set up the permissions, then click the gear and select Apply to enclosed items….