Ubuntu calibre [error converting pdf to mobi]

[Ninian]

While trying to convert a PDF file to MOBI, calibre hangs up with following error:

I'm running on Ubuntu 12.04 x64, and just installed calibre for the first time. Other functions do work well.

// last line of output before error message apears, think not neccessarly to have a closer look at
> TOC item The Conditional (Ternary) Operator [index.html#119] not found in document

// hear the problem starts
> Failed to generate MOBI index:
Traceback (most recent call last):
  File "/usr/lib/calibre/calibre/ebooks/mobi/writer2/main.py", line 101, in generate_index
    self.opts, self.oeb)
  File "/usr/lib/calibre/calibre/ebooks/mobi/writer2/indexer.py", line 477, in __init__
    raise ValueError('No valid entries in TOC, cannot generate index')
ValueError: No valid entries in TOC, cannot generate index

MOBI output written to /tmp/calibre_1.9.0_tmp_Qv10wE/m41HyQ.mobi
ICE default IO error handler doing an exit(), pid = 20847, errno = 32

[Thomas (christanthomas79)]

Hello, I suggest to have a look at this conversion tool and get mobi formats readable on eBooks. For instance, http://kitpdf.com/ is a good method to do these conversions. Give it a shot and see if you get any errors on your Ubuntu version. Cheers!

[gf (gf-interlinks-deactivatedaccount)]

Hello Ninian,
Thank you for submitting this bug and reporting a problem with Calibre. You made this bug report some time ago and Ubuntu and Calibre have been updated since then.

Could you confirm that this is no longer a problem and that we can close the ticket?
If it is still a problem, are you still interested in finding a solution to this bug?
If you are, could you let us know and, in the current version, could you run the following (only once):
apport-collect 1273633
and upload the updated logs and and any other logs that are relevant for this particular issue.

Thank you again for helping make Ubuntu and Calibre better.
G

[Launchpad Janitor (janitor)]

[Expired for calibre (Ubuntu) because there has been no activity for 60 days.]