Why does yum return an error when installing a package, and how can I fix it?

Question

CentOS

A server with centos5 was received, it was necessary to install apc for php - got an error

#yum install php54w-pecl-apc
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
 * base: centos.den.host-engine.com
 * extras: centos.den.host-engine.com
 * rpmforge: mirror.rit.edu
 * updates: centos.den.host-engine.com
 * webtatic-el5: us-east.repo.webtatic.com
c5-testing/primary_db                                                                                                                            | 1.2 kB     00:00
http://dev.centos.org/centos/5/testing/x86_64/repodata/8596812757300b1d87f2682aff7d323fdeb5dd8ee28c11009e5980cb5cd4be14-primary.sqlite.bz2: [Errno -3] Error performing checksum
Trying other mirror.
Error: failure: repodata/8596812757300b1d87f2682aff7d323fdeb5dd8ee28c11009e5980cb5cd4be14-primary.sqlite.bz2 from c5-testing: [Errno 256] No more mirrors to try.

I cleared the cache, to no avail. What do you advise?

Answer 1

Why yam

Well, first of all, not yam, but yum (just like in a joke... ;-) ), and secondly, your *.rpm repository just lies ... or is specified incorrectly.