package apport 2.20.1-0ubuntu2.10 failed to install/upgrade: subprocess new pre-removal script returned error exit status 127

[Iqra Bashir]

I encountered this error every time while installing any update.
while installing caffe on my system i installed certain packages which are now causing priblem. kindly guide me to solve this.

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: apport 2.20.1-0ubuntu2.10
ProcVersionSignature: Ubuntu 4.4.0-101.124-generic 4.4.95
Uname: Linux 4.4.0-101-generic x86_64
ApportLog:

ApportVersion: 2.20.1-0ubuntu2.10
Architecture: amd64
Date: Sat Dec 9 11:47:04 2017
ErrorMessage: subprocess new pre-removal script returned error exit status 127
InstallationDate: Installed on 2017-07-31 (130 days ago)
InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
PackageArchitecture: all
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.3
 apt 1.2.24
SourcePackage: apport
Title: package apport 2.20.1-0ubuntu2.10 failed to install/upgrade: subprocess new pre-removal script returned error exit status 127
UpgradeStatus: Upgraded to xenial on 2017-08-05 (126 days ago)