package xen-utils-common 4.1.2-1ubuntu1 failed to install/upgrade: 子进程 已安装 post-installation 脚本 返回了错误号 1

[Empty]

Can not connect xen:/// in ubuntu though installed xen-hypervisor-4.1 xen-utils-4.1 xenwatch xen-tools xen-utils-common xenstore-utils virtinst virt-viewer & virt-manager .

ProblemType: Package
DistroRelease: Ubuntu 12.04
Package: xen-utils-common 4.1.2-1ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-36.57-generic 3.2.35
Uname: Linux 3.2.0-36-generic x86_64
ApportVersion: 2.0.1-0ubuntu17.1
Architecture: amd64
Date: Fri Jan 25 23:56:16 2013
ErrorMessage: 子进程 已安装 post-installation 脚本 返回了错误号 1
InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120823.1)
MarkForUpload: True
PackageArchitecture: all
SourcePackage: xen-common
Title: package xen-utils-common 4.1.2-1ubuntu1 failed to install/upgrade: 子进程 已安装 post-installation 脚本 返回了错误号 1
UpgradeStatus: No upgrade log present (probably fresh install)
mtime.conffile..etc.xen.xend.config.sxp: 2013-01-25T23:54:47.782876