gnome-tweaks crashed with zipfile.BadZipFile in _RealGetContents(): File is not a zip file

[anass]

just crashed
can't load gnome-shell-communitheme

ProblemType: Crash
DistroRelease: Ubuntu 18.04
Package: gnome-tweaks 3.27.4-1ubuntu1
ProcVersionSignature: Ubuntu 4.13.0-32.35-generic 4.13.13
Uname: Linux 4.13.0-32-generic x86_64
ApportVersion: 2.20.8-0ubuntu8
Architecture: amd64
CrashCounter: 1
CurrentDesktop: ubuntu:GNOME
Date: Tue Feb 6 22:43:05 2018
ExecutablePath: /usr/bin/gnome-tweaks
InstallationDate: Installed on 2018-02-05 (1 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180205)
InterpreterPath: /usr/bin/python3.6
PackageArchitecture: all
ProcCmdline: /usr/bin/python3 /usr/bin/gnome-tweaks
Python3Details: /usr/bin/python3.6, Python 3.6.4, python3-minimal, 3.6.4-1
PythonArgs: ['/usr/bin/gnome-tweaks']
PythonDetails: /home/anas/Error: command ['which', 'python'] failed with exit code 1:, Error: [Errno 2] Aucun fichier ou dossier de ce type: "/home/anas/Error: command ['which', 'python'] failed with exit code 1:": "/home/anas/Error: command ['which', 'python'] failed with exit code 1:", unpackaged
SourcePackage: gnome-tweaks
Title: gnome-tweaks crashed with zipfile.BadZipFile in _RealGetContents(): File is not a zip file
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

[macca (osvnsvnsdno)]

happened to me as well - sorry i do not have anything helpful to say

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Jamison Lahman (lahmanja)]

Got this as well because I tried selecting a file for user theme that was not .zip (was .tar.gz). Converted file to .zip and was able to successfully install.