Cannot complete the install because one or more required items could not be foundSoftware being installed:
PHP Development Tools (PDT) Composer Support 5.3.0.20180307083 (org.eclipse.php.composer.feature.group5.3.0.201803070838)
Missing requirement:Composer Core 5.3.0.201803070838 (org.eclipse.php.composer.core 5.3.0.201803070838) requires ‘bundle org.eclipse.dltk.core 0.0.0’ but it could not be found
Cannot satisfy dependency:
From: PHP Development Tools (PDT) Composer Support 5.3.0.201803070838 (org.eclipse.php.composer.feature.group 5.3.0.201803070838)
To: org.eclipse.php.composer.core [5.3.0.201803070838]
解决方式:
First install Dynamic Language Toolkit: Help–>Install New Software –> Add –> Location: http://download.eclipse.org/technology/dltk/updates-dev/4.0-stable/
Then install PDT: Help–>Install New Software –> Add –> Location: http://download.eclipse.org/tools/pdt/updates/latest
详情见：https://stackoverflow.com/a/19733107