Launch Dreamweaver CC 2015 app and once launched , click on Help menu and select Updates option and check.
Still same ???
Try updating manually :
Error -55 is an network connectivity issue ,
You may also refer below link :
This didn't work I will try downloading manually thanks for the reply and help.
The first link has the previous version that is 2014 and in the second link 2015 is available to download but when I click on it it redirects to a page saying you have no permission? I think I will carry on with the older version thank you.
Not to worry.
For Access Denied error follow below steps :
Click on the below link and open Photoshop Elements download link.
Note: We are not downloading anything from the Photoshop Elements page.
Do not close the page , simply keep it open.
Try to download the file which was giving Access Denied Error .
If you keep the Photoshop Elements page open and try to download apps from direct link , it will download , it wont give Access Denied permissions error.
Thank you it worked and I actually found the reason for the error in CC that is resolution problem. Thanks a lot eventually in worked.
Glad to hear that
You are most welcome .