С ошибками встретились при обработке:/var/cache/apt/archives/snapd_2.32.9_amd64.deb

завершите новичка здесь, пытаясь обновить от 16,04 до 18,04 - но я сталкиваюсь с ошибкой со своим диспетчером пакетов. Даже выполнение sudo apt-get install -f (после того, как, проходя несколько предложений я нашел), результаты по этой ошибке:

С ошибками встретились при обработке:/var/cache/apt/archives/snapd_2.32.9_amd64.deb E: подпроцесс/usr/bin/dpkg возвратил код ошибки (1)

Какие-либо подсказки о том, что я могу сделать для фиксации этого?

Спасибо!

редактирование - добавление полного вывода sudo apt-get install -f:

Reading package lists... Done
Building dependency tree       
Reading state information... Done
Correcting dependencies... Done
The following packages were automatically installed and are no longer required:
  libgtkmm-2.4-1v5 linux-headers-4.13.0-36 linux-headers-4.13.0-36-generic
  linux-headers-4.4.0-117 linux-headers-4.4.0-117-generic
  linux-headers-generic-lts-xenial linux-image-4.13.0-36-generic
  linux-image-4.4.0-117-generic linux-image-extra-4.13.0-36-generic
  linux-image-extra-4.4.0-117-generic linux-image-generic-lts-xenial
Use 'sudo apt autoremove' to remove them.
The following additional packages will be installed:
  snapd
The following packages will be upgraded:
  snapd
1 upgraded, 0 newly installed, 0 to remove and 147 not upgraded.
35 not fully installed or removed.
Need to get 0 B/14,2 MB of archives.
After this operation, 2 478 kB of additional disk space will be used.
Do you want to continue? [Y/n] Y
(Reading database ... 321112 files and directories currently installed.)
Preparing to unpack .../snapd_2.33~14.04_amd64.deb ...
Failed to stop snapd.autoimport.service: Unit snapd.autoimport.service not loaded.
Failed to stop snapd.socket: Unit snapd.socket not loaded.
Failed to stop snapd.service: Unit snapd.service not loaded.
dpkg: warning: subprocess old pre-removal script returned error exit status 5
dpkg: trying script from the new package instead ...
Failed to stop snapd.autoimport.service: Unit snapd.autoimport.service not loaded.
Failed to stop snapd.socket: Unit snapd.socket not loaded.
Failed to stop snapd.service: Unit snapd.service not loaded.
dpkg: error processing archive /var/cache/apt/archives/snapd_2.33~14.04_amd64.deb (--unpack):
 subprocess new pre-removal script returned error exit status 5
Errors were encountered while processing:
 /var/cache/apt/archives/snapd_2.33~14.04_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)