这是cakePHP的异常吗

这是cakePHP的错误吗？
最近想学习一个PHP的框架，然后就在网上找了一下，都说挺好的，可是我下下来部署到PHPEclipse以后发现里面有个红叉，我又重新下载了一个还是有，这个红叉刚好在cakePHP的核心包里面，不知道是怎么回事？

PHP code

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                <div class="actions">
                    <ul>
                <?php
                    echo "\t\t<li>" .$html->link(sprintf(__('Edit %s', true), $singularHumanName), array('action' => 'edit', ${$singularVar}[$modelClass][$primaryKey])). " </li>\n";
                    echo "\t\t<li>" .$html->link(sprintf(__('Delete %s', true), $singularHumanName), array('action' => 'delete', ${$singularVar}[$modelClass][$primaryKey]), null, __('Are you sure you want to delete', true).' #' . ${$singularVar}[$modelClass][$primaryKey] . '?'). " </li>\n";
                    echo "\t\t<li>" .$html->link(sprintf(__('List %s', true), $pluralHumanName), array('action' => 'index')). " </li>\n";
                    echo "\t\t<li>" .$html->link(sprintf(__('New %s', true), $singularHumanName), array('action' => 'add')). " </li>\n";
                

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