# sudo pecl install apc
downloading APC-3.1.6.tgz ...
Starting to download APC-3.1.6.tgz (-1 bytes)
....done: 3,585 bytes
Could not get contents of package "/tmp/tmpspT8Og/APC-3.1.6.tgz". Invalid tgz file.
Download of "pecl/apc" succeeded, but it is not a valid package archive
Error: cannot download "pecl/APC"
[root@D18634 tmp]#
What does this error mean? How do I fix it, thank you.