ubuntu 16.04 install snapd problem

Solution 1:

My version of resolving this issue:

Remove/comment all unnessesary trusty sources from your /etc/apt/sources.list.
Run sudo apt-get update and verify that apt-cache policy snapd is now have the Candidate: 2.32.9 that you need. try to sudo apt install --reinstall snapd.
Optional. If you still have Sub-process /usr/bin/dpkg returned an error code (1) error, clean the cd var/lib/dpkg/info with sudo rm ./snapd* and reinstall the snapd sudo apt install --reinstall snapd.
Verify that the Installed version is 2.32.9 snap --version.