Yum Keeps Giving Error

[Abhishek Rane]

       I tried installing a software on yum and yum sort of starts 
giving error.Here is the error...Yum simply doesnt work after that..Any 
solutions?


yum install picasa
Loading "fastestmirror" plugin
Loading mirror speeds from cached hostfile
google                    100% |=========================|  951 B    
00:00    
livna                     100% |=========================| 2.1 kB    
00:00    
primary.sqlite.bz2        100% |=========================| 267 kB    
00:32    
http://mirror.atrpms.net/livna/fedora/8/i386/repodata/primary.sqlite.bz2: 
[Errno -1] Metadata file does not match checksum
Trying other mirror.
primary.sqlite.bz2        100% |=========================| 268 kB    
00:32    
http://livna.cat.pdx.edu/fedora/8/i386/repodata/primary.sqlite.bz2: 
[Errno -1] Metadata file does not match checksum
Trying other mirror.
primary.sqlite.bz2        100% |=========================| 268 kB    
00:32    
http://ftp-stud.fht-esslingen.de/pub/Mirrors/rpm.livna.org/fedora/8/i386/repodata/primary.sqlite.bz2: 
[Errno -1] Metadata file does not match checksum
Trying other mirror.
primary.sqlite.bz2        100% |=========================| 268 kB    
00:42    
http://wftp.tu-chemnitz.de/pub/linux/livna/fedora/8/i386/repodata/primary.sqlite.bz2: 
[Errno -1] Metadata file does not match checksum
Trying other mirror.
primary.sqlite.bz2        100% |=========================| 268 kB    
01:29    
http://rpm.livna.org/fedora/8/i386/repodata/primary.sqlite.bz2: [Errno 
-1] Metadata file does not match checksum
Trying other mirror.

-----------------------------------------------------------------------------------------------------------------------------------------------------
Here is my repolist

yum repolist
Loading "fastestmirror" plugin
repo id                       repo name                                 
status
adobe-linux-i386        Adobe Systems Incorporated                enabled
fedora                       Fedora 8 - i386                           
enabled
freshrpms                 Fedora Core 8 - i386 - Freshrpms          enabled
fusion                       Compiz Fusion repository                  
enabled
google                      Google - i386                             
enabled
kwizart                     kwizart for Fedora 8 - i386 - Base        
enabled
livna                         Livna for Fedora Core 8 - i386 - Base     
enabled
updates                     Fedora 8 - i386 - Updates                 
enabled