Comment 5 for bug 982436

This happens to me too.

I've upgraded from 10.04 to 12.04.

On running the add-apt-repository or the rhythbox commands in the shell, I get [1]

There's also a proposed solution to it in http://metacodigo.com.ar/?p=428

[1]
Traceback (most recent call last):
  File "/usr/bin/add-apt-repository", line 8, in <module>
    from softwareproperties.SoftwareProperties import SoftwareProperties
  File "/usr/lib/python2.7/dist-packages/softwareproperties/SoftwareProperties.py", line 53, in <module>
    from ppa import AddPPASigningKeyThread, expand_ppa_line
  File "/usr/lib/python2.7/dist-packages/softwareproperties/ppa.py", line 27, in <module>
    import pycurl
ImportError: librtmp.so.0: cannot open shared object file: No such file or directory