Error while updating eclipse
Removing from the "Available Software Sites" in Eclipse, and adding it again did the fix. After exporting and importing bookmarks, the problem did not get resolved. On further thoughts I found that my antivirus is not allowing eclipse to talk to internet. Sandeep Jindal I had a similar problem over the last couple months, but ignored it until I really needed Py Dev to work on my laptop today.
I tried the solutions above to no avail and then I found something odd: In (Window-Available Software) I noticed that the box for 'Py Dev Update Site' AND another one right below it with the location 'file:/updates' were both checked, causing a duplicate of most or all update URLs.
In this part we will discuss about Tiles Framework and its Integration with Spring 3.0 MVC.
Because I am developing for Android, however, I have to install the ADT Plugin within Eclipse by going to Help Install new software (or something to that effect).
Now, I do understand that I can update Eclipse through the actual Ubuntu software center/system, but in order to update plugins and extensions within Eclipse, I have to go to Help Check for Updates (which then scans all plugins for updates).
At that point, Eclipse should automatically download the plugin contents and present you to a dialog asking if you want to restart (to which you should say yes).
After downloading the zip file: Extract the contents of the zip file in the eclipse/dropins folder and restart Eclipse.
so that Eclipse will query the update site you just entered for contents.