ZenLinux Blog

I use Mozilla Thunderbird as my email client and really dig the Lightning calendar extension. However, when I upgraded to Ubuntu Hardy Heron, I was unable to use the calendar extension (Lightning v0.8). I could go to the calendar screens, but none of my appointments were showing up.

It turns out that the Lightning extension requires the libstdc++5 package to be installed. Not only that, but this package must be installed before the Lightning extension is installed. So to resolve this, I removed the Lightning extension, installed libstdc++5, and then reinstalled Lightning. Now everything works nicely.

Weird dependencies and procedures like this are unfortunately too common in software.