package python-opengl 3.0.2-1 failed to install/upgrade: subprocess installed pre-removal script returned error exit status 1

[Jie Wan]

I dont knwo why this happen

ProblemType: Package
DistroRelease: Ubuntu 14.04
Package: python-opengl 3.0.2-1
ProcVersionSignature: Ubuntu 4.4.0-66.87~14.04.1-generic 4.4.44
Uname: Linux 4.4.0-66-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.23
Architecture: amd64
Date: Fri Jun 30 23:32:16 2017
DuplicateSignature: package:python-opengl:3.0.2-1:subprocess installed pre-removal script returned error exit status 1
ErrorMessage: subprocess installed pre-removal script returned error exit status 1
InstallationDate: Installed on 2017-03-15 (108 days ago)
InstallationMedia: Ubuntu 14.04.5 LTS "Trusty Tahr" - Release amd64 (20160803)
PackageArchitecture: all
RelatedPackageVersions:
 dpkg 1.17.5ubuntu5.7
 apt 1.0.1ubuntu2.17
SourcePackage: pyopengl
Title: package python-opengl 3.0.2-1 failed to install/upgrade: subprocess installed pre-removal script returned error exit status 1
UpgradeStatus: No upgrade log present (probably fresh install)

[Jie Wan (whuwan)]

why this happen ?