Can't add any PPA's after reinstalling Ubuntu 13.10

I can't add any PPA's at all after reinstalling Ubuntu 13.10.

Here is what it says:

michael@MikesKomputer:~$ sudo add-apt-repository ppa:atareao/atareao
Cannot add PPA: 'ppa:atareao/atareao'.
Please check that the PPA name or format is correct.

This repository is working as far as I know. The problem is that I can't add any new repositories. Even if I can use the Software Center, I can't have my system with the add-apt-repository command broken.

Long story but this bug was the result of trying to set up a dual boot with Windows 7 and Ubuntu 13.10.

After doing an install with a format of hard drive it works again.

I have the same problem. Although System wide and apt-conf proxy settings are fine, command with proxy settings solve the problem.

sudo https_proxy='https://user:pass@proxy_server:proxy_port/' http_proxy='http://user:pass@proxy_server:proxy_port/' add-apt-repository ppa:webupd8team/java

Both proxy definitions should be present since secure and unsecured connection are used in combination through the execution of repository add.