package mime-support 3.54ubuntu1.1 failed to install/upgrade: el subproceso instalado el script post-installation devolvió el código de salida de error 255

[Emerling]

plank dock no open, and i try remove in terminal. an have error

ProblemType: Package
DistroRelease: Ubuntu 14.04
Package: mime-support 3.54ubuntu1.1
ProcVersionSignature: Ubuntu 3.19.0-28.30~14.04.1-generic 3.19.8-ckt5
Uname: Linux 3.19.0-28-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.13
AptOrdering: plank: Remove
Architecture: amd64
Date: Sun Sep 20 09:47:57 2015
DuplicateSignature: package:mime-support:3.54ubuntu1.1:the Subprocess installed post -installation script returned error exit code 255
ErrorMessage: the Subprocess installed post -installation script returned error exit code: 255
InstallationDate: Installed on 2015-09-19 (1 days ago)
InstallationMedia: Xubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
PackageArchitecture: all
RelatedPackageVersions:
 dpkg 1.17.5ubuntu5.4
 apt 1.0.1ubuntu2.10
SourcePackage: mime-support
Title: package mime-support 3.54ubuntu1.1 failed to install/upgrade: subprocess installed post- installation script returned error exit code 255
UpgradeStatus: No upgrade log present (probably fresh install)

[RansomStark (ransomstark)]

Thank you for taking the time to report this issue and helping to make Ubuntu better. We noticed that some of the sentences in this bug report are not in English. If they were translated to English they would be more understandable to triagers. Could you please translate them?

[Emerling (emerling)]

 already translated

[Launchpad Janitor (janitor)]

[Expired for mime-support (Ubuntu) because there has been no activity for 60 days.]