PEAR channel using a unsupported protocol

When installing PHP 5.2.14 from source and then installing PEAR libraries, I got the following error when executing pear:

pear.php.net is using a unsupported protocol - This should never happen.
install failed

so How to fixed this ?

#rm -rf /usr/local/lib/php/.channels

and then re execute pear channels again

#pear update-channels

This should fixed your problem.