Solving Eclipse Update Problem on Linux

If you just installed Eclipse and want to update it (HELP ->CHECK FOR UPDATES), you may encounter the following problem:

This error will happen if you installed Eclipse using package managers like Ubuntu Software Center or the Synaptics Package Manger. This happens because Eclipse will be installed in a secured location where its contents can only be modified with the root's permission.

To solve this problem you need to start Eclipse as root. To do this, you simply must open a terminal and type:
sudo Eclipse
After you inputted the root password (if you don't know it, check with the administrator), this will start Eclipse as root and will allow you to get the much needed updates (by going to HELP->CHECK FOR UPDATES).