package maven 3.6.3-1 failed to install/upgrade: installed maven package post-installation script subprocess returned error exit status 2

[Amol Drago]

not able to install this application

ProblemType: Package
DistroRelease: Ubuntu 20.04
Package: maven 3.6.3-1
ProcVersionSignature: Ubuntu 5.8.0-48.54~20.04.1-generic 5.8.18
Uname: Linux 5.8.0-48-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.16
Architecture: amd64
CasperMD5CheckResult: skip
Date: Fri Mar 26 09:38:12 2021
DuplicateSignature:
 package:maven:3.6.3-1
 Setting up maven (3.6.3-1) ...
 update-alternatives: error: alternative link /usr/bin/mvn is already managed by maven
 dpkg: error processing package maven (--configure):
  installed maven package post-installation script subprocess returned error exit status 2
ErrorMessage: installed maven package post-installation script subprocess returned error exit status 2
InstallationDate: Installed on 2020-08-02 (235 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
PackageArchitecture: all
Python3Details: /usr/bin/python3.8, Python 3.8.5, python3-minimal, 3.8.2-0ubuntu2
PythonDetails: N/A
RelatedPackageVersions:
 dpkg 1.19.7ubuntu3
 apt 2.0.4
SourcePackage: maven
Title: package maven 3.6.3-1 failed to install/upgrade: installed maven package post-installation script subprocess returned error exit status 2
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

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