No puedo actualizar mi ubuntu.

[Luis Israel Galarza Barreto]

Mi problema es que no me deja actualizar mi ubuntu , yo tengo ubuntu 14.04 y no me deja actualizar a 16.04. Me aparee un cartel diciendo (Ha ocurrido un problema mientras se calculaba la actualización.

 Eso se ha podido causar por:
 * Actualizar a una versión de Ubuntu aún no publicada
 * Estar ejecutando la versión actual, aún no publicada, de Ubuntu
 * Paquetes no oficiales de software no proporcionados por Ubuntu)
 Gracias por su atención y discukpe la molestia y por favor respondanme

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: ubuntu-release-upgrader-core 1:0.220.9
ProcVersionSignature: Ubuntu 4.4.0-79.100~14.04.1-generic 4.4.67
Uname: Linux 4.4.0-79-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.24
Architecture: amd64
CrashDB: ubuntu
CurrentDesktop: Unity
Date: Sun Apr 28 12:47:47 2019
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to trusty on 2019-04-28 (0 days ago)
VarLogDistupgradeTermlog:

mtime.conffile..etc.update.manager.release.upgrades: 2019-04-28T11:47:10.810055

[Alex Murray (alexmurray)]

I noticed that some of the sentences in this bug report are not in English. If they were translated to English they would be accessible to more triagers. Could you please translate them?

[Alex Murray (alexmurray)]

Thanks for taking the time to report this bug and helping to make Ubuntu better. We appreciate the difficulties you are facing, but this appears to be a "regular" (non-security) bug. I have unmarked it as a security issue since this bug does not show evidence of allowing attackers to cross privilege boundaries nor directly cause loss of data/privacy. Please feel free to report any other bugs you may find.