我正在尝试在虚拟机的Ubuntu操作系统中安装一些梨包，如gnupg，但是如果我使用sudo pecl install gnupg，它会抛出
No releases available for package "pecl.php.net/gnupg"
install failed
它不仅适用于gnupg，也适用于所有梨包。但我无法确定究竟是什么问题。相同的命令在我的另一个虚拟机中工作。所以我真的很困惑。请帮忙。
注意：
PEAR Version: 1.9.4
PHP Version: 5.5.9-1ubuntu4
Zend Engine Version: 2.5.0
Running on: Linux udhay-dev 3.13.0-24-generic #47-Ubuntu SMP Fri May 2 23:30:00 UTC 2014 x86_64
这是梨配置（使用pear config-show）显示的，
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 http://foo.bar/
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 /home/udhay-dev/pear/bin
PEAR documentation directory doc_dir /home/udhay-dev/pear/docs
PHP extension directory ext_dir /usr/lib/php5/20121212+lfs
PEAR directory php_dir /home/udhay-dev/pear/share/pear
PEAR Installer cache directory cache_dir /tmp/pear/cache
PEAR configuration file cfg_dir /home/udhay-dev/pear/cfg
directory
PEAR data directory data_dir /home/udhay-dev/pear/data
PEAR Installer download download_dir /tmp/pear/install
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/install
PEAR test directory test_dir /home/udhay-dev/pear/tests
PEAR www files directory www_dir /home/udhay-dev/pear/www
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 /home/udhay-dev/.pearrc
System Configuration File Filename /etc/pear/pear.conf
当我使用pear clear-cache时，它显示，
找不到目录/ tmp / pear / cache。
对于命令pear update-channels和pear upgrade，我得到了，
PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib/php5/20121212/http.so' - /usr/lib/php5/20121212/http.so: undefined symbol: php_persistent_handle_abandon in Unknown on line 0
Updating channel "doc.php.net"
Channel "doc.php.net" is not responding over http://, failed with message: Connection to `foo.bar:8080' failed: php_network_getaddresses: getaddrinfo failed: Name or service not known
Trying channel "doc.php.net" over https:// instead
Cannot retrieve channel.xml for channel "doc.php.net" (Connection to `foo.bar:8080' failed: php_network_getaddresses: getaddrinfo failed: Name or service not known)
Updating channel "pear.php.net"
Channel "pear.php.net" is not responding over http://, failed with message: Connection to `foo.bar:8080' failed: php_network_getaddresses: getaddrinfo failed: Name or service not known
Trying channel "pear.php.net" over https:// instead
Cannot retrieve channel.xml for channel "pear.php.net" (Connection to `foo.bar:8080' failed: php_network_getaddresses: getaddrinfo failed: Name or service not known)
Updating channel "pecl.php.net"
Channel "pecl.php.net" is not responding over http://, failed with message: Connection to `foo.bar:8080' failed: php_network_getaddresses: getaddrinfo failed: Name or service not known
Trying channel "pecl.php.net" over https:// instead
Cannot retrieve channel.xml for channel "pecl.php.net" (Connection to `foo.bar:8080' failed: php_network_getaddresses: getaddrinfo failed: Name or service not known)
你以前试过这个吗？
pear clear-cache
pear update-channels
pear upgrade
我有pecl和oci8这个问题。通过设置代理以通过我们的防火墙解决：
sudo pear config-set http_proxy http://username:[email protected]:port
也许这是你的问题？
似乎任何连接问题都可能导致pear install返回“没有可用的版本”。其他梨命令如pear list-upgrades和pear update-channels返回更多有用的错误。
当OP运行pear update-channels时，他们得到“php_network_getaddresses：getaddrinfo failed：名称或服务未知”错误。所以我的猜测是OP在他们的VM上有某种DNS配置问题。
在我们自己的情况下，我们的Linux服务器是AWS EC2实例。当我们运行pear list-upgrades时，我们看到了“连接超时”消息。所以我们的问题是我们的AWS安全组阻止了出站HTTP流量。
在我的情况下，我使用pecl二进制代替pear二进制，它帮助安装包并摆脱No releases available...错误。
我知道OP使用pecl但是我在厨师使用php_pear资源时遇到完全相同的错误后来到这里所以我会留在这里以防万一有人会像我一样找到这个页面。