The problem is that the "simplejson" package is missing. On my N900 it lives in /usr/lib/python2.5/site-packages/simplejson. Fine, I think, so he just needs to install it. But here's what I get when I try to figure out the package name: scroll:~# apt-get install simplejson Reading package lists... Done Building dependency tree Reading state information... Done Package simplejson is not available, but is referred to by another package. This may mean that the package is missing, has been obsoleted, or is only available from another source E: Package simplejson has no installation candidate A bit of Googling reveals that it's actually named python-simplejson. I suspect the problem might be a wrong dependency in Modrana? Anyway, you should be able to solve it by doing (as root): apt-get install python-simplejson Good luck!