please provide me the solution...
ProblemType: Package
DistroRelease: Ubuntu 12.10
Package: oxygen-icon-theme (not installed)
ProcVersionSignature: Ubuntu 3.5.0-26.42-generic 3.5.7.6
Uname: Linux 3.5.0-26-generic i686
ApportVersion: 2.6.1-0ubuntu10
Architecture: i386
Date: Sat Apr 6 21:32:35 2013
DuplicateSignature:
Unpacking oxygen-icon-theme (from .../oxygen-icon-theme_4%3a4.9.2-0ubuntu1_all.deb) ...
dpkg-deb (subprocess): decompressing archive member: lzma error: compressed data is corrupt
dpkg-deb: error: subprocess <decompress> returned error exit status 2
dpkg: error processing /var/cache/apt/archives/oxygen-icon-theme_4%3a4.9.2-0ubuntu1_all.deb (--unpack):
cannot copy extracted data for './usr/share/icons/oxygen/256x256/mimetypes/application-x-zerosize.png' to '/usr/share/icons/oxygen/256x256/mimetypes/application-x-zerosize.png.dpkg-new': unexpected end of file or stream
ErrorMessage: cannot copy extracted data for './usr/share/icons/oxygen/256x256/mimetypes/application-x-zerosize.png' to '/usr/share/icons/oxygen/256x256/mimetypes/application-x-zerosize.png.dpkg-new': unexpected end of file or stream
InstallationDate: Installed on 2013-03-30 (7 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release i386 (20121017.2)
MarkForUpload: True
SourcePackage: oxygen-icons
Title: package oxygen-icon-theme (not installed) failed to install/upgrade: cannot copy extracted data for './usr/share/icons/oxygen/256x256/mimetypes/application-x-zerosize.png' to '/usr/share/icons/oxygen/256x256/mimetypes/application-x-zerosize.png.dpkg-new': unexpected end of file or stream
UpgradeStatus: No upgrade log present (probably fresh install)
dpkg-deb (subprocess): decompressing archive member: lzma error: compressed data is corrupt
somehow your download got corrupted, nothing we can do about that unfortunately.