linux系统安装sublime的问题

nstallArchives() failed:  ...

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(Reading database ... 
(Reading database ... 5%
(Reading database ... 10%
(Reading database ... 15%
(Reading database ... 20%
(Reading database ... 25%
(Reading database ... 30%
(Reading database ... 80%
(Reading database ... 85%
(Reading database ... 90%
(Reading database ... 95%
(Reading database ... 100%
(Reading database ... 197864 files and directories currently installed.)
Preparing to unpack .../sublime-text_2.0.2-1~webupd8~3_all.deb ...
Downloading...
--2014-10-29 14:50:10--  https://c758482.ssl.cf2.rackcdn.com/Sublime%20Text%202.0.2.tar.bz2
 c758482.ssl.cf2.rackcdn.com (c758482.ssl.cf2.rackcdn.com)... 
wget:  c758482.ssl.cf2.rackcdn.com
download failed
Download done.
Removing outdated cached downloads...
sha256sum mismatch Sublime Text 2.0.2.tar.bz2
Sublime Text is NOT installed.
dpkg: error processing archive /var/cache/apt/archives/sublime-text_2.0.2-1~webupd8~3_all.deb (--unpack):
 subprocess new pre-installation script returned error exit status 1
Errors were encountered while processing:
 /var/cache/apt/archives/sublime-text_2.0.2-1~webupd8~3_all.deb
Error in function:

顺带说一下：以上是在ubuntu 自带的软件中心中安装的，之前用这几个命令安装过，但是也失败了 add-apt-repository ppa:webupd8team/sublime-text-2 apt-get update apt-get install sublime-text 我初入Linux系统，求大神帮忙解决