[igraph] ImportError: /usr/lib/python2.6/dist-packages/igraph/core.so: undefined symbol: igraph_community_leading_eigenvector_naive

[Sabine Van Dillen]

Dear IGraphers,

I need to install igraph on an Ubuntu 10.04 computer.

I tried to use the rows written on the wikidot :

sudo add-apt-repository ppa:igraph/ppa

sudo aptitude update

sudo aptitude install python-igraph

But when I try to use igraph or a program which depends on igraph, I get the following error message :

""

Traceback (most recent call last):
  File "/usr/bin/igraph", line 3, in <module>
    from igraph.app.shell import main
  File "/usr/lib/python2.6/dist-packages/igraph/__init__.py", line 30, in <module>
    from igraph.core import *
ImportError: /usr/lib/python2.6/dist-packages/igraph/core.so: undefined symbol: igraph_community_leading_eigenvector_naive
""

What have I missed ?

Thanks in advance

Sabine