包装'；php5-gd'；没有安装候选者

“PHP模块gd:Missing”我收到了这样一个错误。我正在尝试安装

php5-gd

apt-get install php5-gd

我使用的是Ubuntu 16.10和PHP版本7。我做了所有的更新

当我试图安装

php5-gd

时，我遇到了如下错误

Reading package lists... Done
Building dependency tree       
Reading state information... Done
Package php5-gd is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

E: Package 'php5-gd' has no installation candidate

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您可以使用meta paclaget

php-gd

，它是

php7.0-gd

sudo apt-get install php-gd

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您已经安装了php7，但是您正在尝试安装一个php5包，这就是问题所在

首先通过

sudophp-v

检查您的php版本。我有

php7

，所以结果是：

PHP 7.0.18-0ubuntu0.17.04.1 (cli) (built: Apr 26 2017 23:59:48) ( NTS )
Copyright (c) 1997-2017 The PHP Group
Zend Engine v3.0.0, Copyright (c) 1998-2017 Zend Technologies
with Zend OPcache v7.0.18-0ubuntu0.17.04.1, Copyright (c) 1999-2017, by Zend Technologies

由于我有php7，我将执行以下操作来列出php包

这又回来了

libapache2-mod-php7.0 - server-side, HTML-embedded scripting language (Apache 2 module)
php-all-dev - package depending on all supported PHP development packages
php7.0 - server-side, HTML-embedded scripting language (metapackage)
php7.0-cgi - server-side, HTML-embedded scripting language (CGI binary)
php7.0-cli - command-line interpreter for the PHP scripting language
php7.0-common - documentation, examples and common module for PHP
php7.0-curl - CURL module for PHP
php7.0-dev - Files for PHP7.0 module development
php7.0-gd - GD module for PHP
php7.0-gmp - GMP module for PHP
php7.0-json - JSON module for PHP
php7.0-ldap - LDAP module for PHP
php7.0-mysql - MySQL module for PHP
php7.0-odbc - ODBC module for PHP
php7.0-opcache - Zend OpCache module for PHP
php7.0-pgsql - PostgreSQL module for PHP
php7.0-pspell - pspell module for PHP
php7.0-readline - readline module for PHP
php7.0-recode - recode module for PHP
php7.0-snmp - SNMP module for PHP
php7.0-sqlite3 - SQLite3 module for PHP
php7.0-tidy - tidy module for PHP
php7.0-xml - DOM, SimpleXML, WDDX, XML, and XSL module for PHP
php7.0-xmlrpc - XMLRPC-EPI module for PHP
libphp7.0-embed - HTML-embedded scripting language (Embedded SAPI library)
php-amqp - AMQP extension for PHP
php-apcu - APC User Cache for PHP
php-gearman - PHP wrapper to libgearman
php-geoip - GeoIP module for PHP
php-gmagick - Provides a wrapper to the GraphicsMagick library
php-gnupg - PHP wrapper around the gpgme library
php-http - PECL HTTP module for PHP Extended HTTP Support
php-igbinary - igbinary PHP serializer
php-imagick - Provides a wrapper to the ImageMagick library
php-libsodium - PHP wrapper for the Sodium cryptographic library
php-mailparse - Email message manipulation for PHP
php-memcache - memcache extension module for PHP
php-memcached - memcached extension module for PHP, uses libmemcached
php-mongodb - MongoDB driver for PHP
php-msgpack - PHP extension for interfacing with MessagePack
php-oauth - OAuth 1.0 consumer and provider extension
php-pinba - Pinba module for PHP
...and do on

现在要安装软件包，请使用所需的软件包运行以下命令

sudo apt-get install php7.0-mysql php7.0-gd php7.0-curl php7.0-recode

注意：

php7.0-mysql php7.0-gd php7.0-curl php7.0-recode

是上面列出的包

更新

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别忘了重新启动apache

sudo服务apache2重新加载

请检查php版本并安装模块

 apt-get update
 apt-get install php5.6-gd

如果需要其他模块，则使用此命令获取所有可用模块

apt-cache search php5.*

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如果安装了php7，可以尝试使用php7.0-php7。但是，试图安装PHP5GD Library是最具声明性和公认的答案：）谢谢@regolith

apt-cache search php5.*