我在我的 Ubuntu 本地机器上安装了 Pear，并且我已经使用这个环境将近一年没有问题了。我多次更新梨包没有问题。但我不能在六月或七月或多或少地做到这一点。它说“获取频道信息时出错.. xml 无效（重定向但没有位置）。谁能帮助我？我没有直接更改 Pear 中的任何内容（我记得），突然间我无法升级任何软件包。
这是我的梨版本（梨 -V）：
PEAR Version: 1.9.4
PHP Version: 5.4.9-4ubuntu2.3
Zend Engine Version: 2.4.0
Running on: Linux oficina11 3.8.0-30-generic #44-Ubuntu SMP Thu Aug 22 20:52:24 UTC 2013 x86_64
我的配置（梨配置显示）：
Configuration (channel pear.php.net):
=====================================
Auto-discover new Channels auto_discover 1
Default Channel default_channel pear.php.net
HTTP Proxy Server Address http_proxy <not set>
PEAR server [DEPRECATED] master_server pear.php.net
Default Channel Mirror preferred_mirror pear.php.net
Remote Configuration File remote_config <not set>
PEAR executables directory bin_dir /usr/bin
PEAR documentation directory doc_dir /usr/share/php/doc
PHP extension directory ext_dir /usr/lib/php5/20100525+lfs
PEAR directory php_dir /usr/share/php
PEAR Installer cache directory cache_dir /tmp/pear/cache
PEAR configuration file cfg_dir /usr/share/php/cfg
directory
PEAR data directory data_dir /usr/share/php/data
PEAR Installer download download_dir /build/buildd/php5-5.4.9/pear-build-download
directory
PHP CLI/CGI binary php_bin /usr/bin/php
php.ini location php_ini <not set>
--program-prefix passed to php_prefix <not set>
PHP's ./configure
--program-suffix passed to php_suffix <not set>
PHP's ./configure
PEAR Installer temp directory temp_dir /tmp/pear/temp
PEAR test directory test_dir /usr/share/php/test
PEAR www files directory www_dir /usr/share/php/htdocs
Cache TimeToLive cache_ttl 3600
Preferred Package State preferred_state stable
Unix file mask umask 2
Debug Log Level verbose 1
PEAR password (for password <not set>
maintainers)
Signature Handling Program sig_bin /usr/bin/gpg
Signature Key Directory sig_keydir /etc/pear/pearkeys
Signature Key Id sig_keyid <not set>
Package Signature Type sig_type gpg
PEAR username (for username <not set>
maintainers)
User Configuration File Filename /root/.pearrc
System Configuration File Filename /etc/pear/pear.conf
我尝试升级时返回的消息（pear upgrade-all）：
Error getting channel info from components.ez.no: File http://components.ez.no:80/p/packages.xml not valid (redirected but no location)
Error getting channel info from pear.php.net: File http://pear.php.net:80/rest/p/packages.xml not valid (redirected but no location)Error getting channel info from pear.phpunit.de: File http://pear.phpunit.de:80/rest/p/packages.xml not valid (redirected but no location)
... (all the rest of packages)