I did:
apt-get install --reinstall linux-headers-3.2.0-68 linux-headers-3.2.0-68-generic linux-image-3.2.0-68-generic
This time there were no errors.
I did:
apt-get install --reinstall linux-headers- 3.2.0-68 linux-headers- 3.2.0-68- generic linux-image- 3.2.0-68- generic
This time there were no errors.