当我尝试在
PHP中使用imagefromjpeg()函数时,它抛出了错误.所以,我尝试使用以下命令安装GD库：
sudo apt-get install PHP5-gd
但是我收到了以下错误.
PHP5-gd : Depends: PHP5-common (= 5.5.9+dfsg-1ubuntu4) but 5.5.10+dfsg-1+deb.sury.org~saucy+1 is to be installed E: Unable to correct problems,you have held broken packages.
我使用的是Ubuntu 14.04LTS.我最近从ubuntu 13.10升级了我的操作系统.
如何克服这个错误？
dpkg -l | grep PHP的输出是：
ii cakePHP 1.3.15-1 all MVC rapid application development framework for PHP ii cakePHP-scripts 1.3.15-1 all MVC rapid application development framework for PHP (scripts) ii libapache2-mod-PHP5 5.5.10+dfsg-1+deb.sury.org~saucy+1 amd64 server-side,HTML-embedded scripting language (Apache 2 module) ii libedit2:amd64 3.1-20130712-2+debPHP.org~saucy+3 amd64 BSD editline and history libraries ii libjson-c2:amd64 0.11-3+debPHP.org~saucy+1 amd64 JSON manipulation library - shared library ii libjson-c2:i386 0.11-3+debPHP.org~saucy+1 i386 JSON manipulation library - shared library ii libjson0:amd64 0.11-3+debPHP.org~saucy+1 amd64 JSON manipulation library (transitional package) ii PHP-gettext 1.0.11-1 all read gettext MO files directly,without requiring anything other than PHP ii PHP-pear 5.5.10+dfsg-1+deb.sury.org~saucy+1 all PEAR - PHP Extension and Application Repository ii PHP5 5.5.10+dfsg-1+deb.sury.org~saucy+1 all server-side,HTML-embedded scripting language (Metapackage) ii PHP5-cgi 5.5.10+dfsg-1+deb.sury.org~saucy+1 amd64 server-side,HTML-embedded scripting language (CGI binary) ii PHP5-cli 5.5.10+dfsg-1+deb.sury.org~saucy+1 amd64 command-line interpreter for the PHP5 scripting language ii PHP5-common 5.5.10+dfsg-1+deb.sury.org~saucy+1 amd64 Common files for packages built from the PHP5 source ii PHP5-curl 5.5.10+dfsg-1+deb.sury.org~saucy+1 amd64 CURL module for PHP5 ii PHP5-dev 5.5.10+dfsg-1+deb.sury.org~saucy+1 amd64 Files for PHP5 module development rc PHP5-gd 5.4.9-4ubuntu2.4 amd64 GD module for PHP5 ii PHP5-imagick 3.1.2-1+debPHP.org~saucy+1 amd64 ImageMagick module for PHP5 ii PHP5-json 1.3.2-3+debPHP.org~saucy+1 amd64 JSON module for PHP5 ii PHP5-mcrypt 5.5.10+dfsg-1+deb.sury.org~saucy+1 amd64 MCrypt module for PHP5 rc PHP5-MysqL 5.4.9-4ubuntu2.4 amd64 MysqL module for PHP5 ii PHP5-MysqLnd 5.5.10+dfsg-1+deb.sury.org~saucy+1 amd64 MysqL module for PHP5 (Native Driver) ii PHP5-pgsql 5.5.10+dfsg-1+deb.sury.org~saucy+1 amd64 Postgresql module for PHP5 ii PHP5-readline 5.5.10+dfsg-1+deb.sury.org~saucy+1 amd64 Readline module for PHP5 ii PHP5-xdebug 2.2.3-2build1 amd64 Xdebug Module for PHP 5 ii PHPmyadmin 4:4.0.10-1 all MysqL web administration tool ii pkg-PHP-tools 1.11 all varIoUs packaging tools and scripts for PHP packages
您似乎已通过启动板PPA安装了PHP：
https://launchpad.net/~ondrej/+archive/php5
如果ppa仍处于活动状态,请检查您的apt sources.list.在14.04,你应该有这些repos活跃：
deb http://ppa.launchpad.net/ondrej/PHP5/ubuntu trusty main deb-src http://ppa.launchpad.net/ondrej/PHP5/ubuntu trusty main
说明：
您似乎之前添加了额外的PHP启动板存储库,但在dist-upgrade期间它已停用.因此,apt尝试从标准的debian repo安装PHP5-gd,但是这个版本还需要一个标准的PHP-common作为依赖(你没有).通过再次激活launchpad repo,已经安装了PHP5-gd,所有其他的PHP软件包应该已经从ppa升级到Ubuntu 14.04(“可靠”)版本.