package yaru-theme-gnome-shell 20.04.11.1 failed to install/upgrade: installed yaru-theme-gnome-shell package post-installation script subprocess returned error exit status 2

[Parth Nirmal]

isuue about the theme.

ProblemType: Package
DistroRelease: Ubuntu 20.04
Package: yaru-theme-gnome-shell 20.04.11.1
ProcVersionSignature: Ubuntu 5.13.0-30.33~20.04.1-generic 5.13.19
Uname: Linux 5.13.0-30-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.21
Architecture: amd64
CasperMD5CheckResult: skip
Date: Thu Feb 24 08:22:55 2022
Dependencies:

DuplicateSignature:
 package:yaru-theme-gnome-shell:20.04.11.1
 Setting up yaru-theme-gnome-shell (20.04.11.1) ...
 update-alternatives: error: cannot stat file '/etc/alternatives/gdm3-theme.gresource': Invalid argument
 dpkg: error processing package yaru-theme-gnome-shell (--configure):
  installed yaru-theme-gnome-shell package post-installation script subprocess returned error exit status 2
ErrorMessage: installed yaru-theme-gnome-shell package post-installation script subprocess returned error exit status 2
InstallationDate: Installed on 2022-02-22 (2 days ago)
InstallationMedia: Ubuntu 20.04.3 LTS "Focal Fossa" - Release amd64 (20210819)
PackageArchitecture: all
Python3Details: /usr/bin/python3.8, Python 3.8.10, python3-minimal, 3.8.2-0ubuntu2
PythonDetails: N/A
RelatedPackageVersions:
 dpkg 1.19.7ubuntu3
 apt 2.0.6
SourcePackage: yaru-theme
Title: package yaru-theme-gnome-shell 20.04.11.1 failed to install/upgrade: installed yaru-theme-gnome-shell package post-installation script subprocess returned error exit status 2
UpgradeStatus: No upgrade log present (probably fresh install)