package snap (not installed) failed to install/upgrade: trying to overwrite '/usr/share/man/man1/snap.1.gz', which is also in package snapd 2.16+16.10ubuntu1

[Jason Yundt]

I'm not really sure what happened. I had just booted my laptop, and opened Firefox when the bug reporter poped up.

ProblemType: Package
DistroRelease: Ubuntu 17.04
Package: snap (not installed)
ProcVersionSignature: Ubuntu 4.8.0-26.28-generic 4.8.0
Uname: Linux 4.8.0-26-generic x86_64
ApportVersion: 2.20.3-0ubuntu8
Architecture: amd64
Date: Thu Nov 3 07:20:55 2016
DuplicateSignature:
 package:snap:(not installed)
 Unpacking snap (2013-11-29-1ubuntu2) ...
 dpkg: error processing archive /tmp/apt-dpkg-install-uaMu9x/12-snap_2013-11-29-1ubuntu2_amd64.deb (--unpack):
  trying to overwrite '/usr/share/man/man1/snap.1.gz', which is also in package snapd 2.16+16.10ubuntu1
ErrorMessage: trying to overwrite '/usr/share/man/man1/snap.1.gz', which is also in package snapd 2.16+16.10ubuntu1
InstallationDate: Installed on 2016-11-02 (2 days ago)
InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Alpha amd64 (20161102)
RelatedPackageVersions:
 dpkg 1.18.10ubuntu1
 apt 1.3.1
SourcePackage: snap
Title: package snap (not installed) failed to install/upgrade: trying to overwrite '/usr/share/man/man1/snap.1.gz', which is also in package snapd 2.16+16.10ubuntu1
UpgradeStatus: No upgrade log present (probably fresh install)

[Seth Arnold (seth-arnold)]

Jason, the trouble is you can't use both the SNAP DNA analysis tool and the Snappy packaging format on the same system -- they both package files with the same name but different contents.

You'll have to decide if you want to use the SNAP DNA tool (in which case apt-get purge snapd may help) or the Snappy packaging system (in which case apt-get purge snap may help). You probably still have a mess to clean up though :(

Thanks