Hi there,

I have Ubuntu 14.04, Shotwell came pre-installed.

I noticed that there is a new version of Shotwell on your PPA: https://launchpad.net/~yorba/+archive/ubuntu/ppa 

So I added it to my sources list and and tried to run an update.

This is the error I get in the terminal:

(Reading database ... 299095 files and directories currently installed.)
Preparing to unpack .../shotwell_0.18.1-1~trusty1_amd64.deb ...
Unpacking shotwell (0.18.1-1~trusty1) over (0.18.0-0ubuntu4.1) ...
dpkg: error processing archive /var/cache/apt/archives/shotwell_0.18.1-1~trusty1_amd64.deb (--unpack):
 trying to overwrite '/usr/share/shotwell/icons/one-tag.png', which is also in package shotwell-common 0.18.0-0ubuntu4.1
dpkg-deb: error: subprocess paste was killed by signal (Broken pipe)
Errors were encountered while processing:
 /var/cache/apt/archives/shotwell_0.18.1-1~trusty1_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)