1 exception(s):
Exception #0 (Exception): Warning: Invalid argument supplied for foreach() in C:xampphtdocsmagentoappcodeFuduHelloWorldviewfrontendtemplatesindex.phtml on line 14

Exception #0 (Exception): Warning: Invalid argument supplied for foreach() in C:xampphtdocsmagentoappcodeFuduHelloWorldviewfrontendtemplatesindex.phtml on line 14
#0 C:xampphtdocsmagentoappcodeFuduHelloWorldviewfrontendtemplatesindex.phtml(14): MagentoFrameworkAppErrorHandler->handler(2, 'Invalid argumen...', 'C:\xampp\htdocs...', 14, Array)
#1 C:xampphtdocsmagentovendormagentoframeworkViewTemplateEnginePhp.php(59): include('C:\xampp\htdocs...')
#2 C:xampphtdocsmagentovendormagentoframeworkViewElementTemplate.php(270): MagentoFrameworkViewTemplateEnginePhp->render(Object(MagentoFrameworkViewElementTemplate), 'C:/xampp/htdocs...', Array)
#3 C:xampphtdocsmagentovendormagentoframeworkViewElementTemplate.php(300): MagentoFrameworkViewElementTemplate->fetchView('C:/xampp/htdocs...')
#4 C:xampphtdocsmagentovendormagentoframeworkViewElementAbstractBlock.php(667): MagentoFrameworkViewElementTemplate->_toHtml()
#5 C:xampphtdocsmagentovendormagentoframeworkViewLayout.php(558): MagentoFrameworkViewElementAbstractBlock->toHtml()
#6 C:xampphtdocsmagentovendormagentoframeworkViewLayout.php(534): MagentoFrameworkViewLayout->_renderBlock('test')
#7 C:xampphtdocsmagentogeneratedcodeMagentoFrameworkViewLayoutInterceptor.php(206): MagentoFrameworkViewLayout->renderNonCachedElement('test')
#8 C:xampphtdocsmagentovendormagentoframeworkViewLayout.php(489): MagentoFrameworkViewLayoutInterceptor->renderNonCachedElement('test')
#9 C:xampphtdocsmagentogeneratedcodeMagentoFrameworkViewLayoutInterceptor.php(193): MagentoFrameworkViewLayout->renderElement('test', false)
#10 C:xampphtdocsmagentovendormagentoframeworkViewLayout.php(586): MagentoFrameworkViewLayoutInterceptor->renderElement('test', false)
#11 C:xampphtdocsmagentovendormagentoframeworkViewLayout.php(536): MagentoFrameworkViewLayout->_renderContainer('content', false)
#12 C:xampphtdocsmagentogeneratedcodeMagentoFrameworkViewLayoutInterceptor.php(206): MagentoFrameworkViewLayout->renderNonCachedElement('content')
#13 C:xampphtdocsmagentovendormagentoframeworkViewLayout.php(489): MagentoFrameworkViewLayoutInterceptor->renderNonCachedElement('content')
#14 C:xampphtdocsmagentogeneratedcodeMagentoFrameworkViewLayoutInterceptor.php(193): MagentoFrameworkViewLayout->renderElement('content', false)
#15 C:xampphtdocsmagentovendormagentoframeworkViewLayout.php(586): MagentoFrameworkViewLayoutInterceptor->renderElement('content', false)
#16 C:xampphtdocsmagentovendormagentoframeworkViewLayout.php(536): MagentoFrameworkViewLayout->_renderContainer('main', false)
#17 C:xampphtdocsmagentogeneratedcodeMagentoFrameworkViewLayoutInterceptor.php(206): MagentoFrameworkViewLayout->renderNonCachedElement('main')
#18 C:xampphtdocsmagentovendormagentoframeworkViewLayout.php(489): MagentoFrameworkViewLayoutInterceptor->renderNonCachedElement('main')
#19 C:xampphtdocsmagentogeneratedcodeMagentoFrameworkViewLayoutInterceptor.php(193): MagentoFrameworkViewLayout->renderElement('main', false)
#20 C:xampphtdocsmagentovendormagentoframeworkViewLayout.php(586): MagentoFrameworkViewLayoutInterceptor->renderElement('main', false)
#21 C:xampphtdocsmagentovendormagentoframeworkViewLayout.php(536): MagentoFrameworkViewLayout->_renderContainer('columns', false)
#22 C:xampphtdocsmagentogeneratedcodeMagentoFrameworkViewLayoutInterceptor.php(206): MagentoFrameworkViewLayout->renderNonCachedElement('columns')
#23 C:xampphtdocsmagentovendormagentoframeworkViewLayout.php(489): MagentoFrameworkViewLayoutInterceptor->renderNonCachedElement('columns')
#24 C:xampphtdocsmagentogeneratedcodeMagentoFrameworkViewLayoutInterceptor.php(193): MagentoFrameworkViewLayout->renderElement('columns', false)
#25 C:xampphtdocsmagentovendormagentoframeworkViewLayout.php(586): MagentoFrameworkViewLayoutInterceptor->renderElement('columns', false)
#26 C:xampphtdocsmagentovendormagentoframeworkViewLayout.php(536): MagentoFrameworkViewLayout->_renderContainer('main.content', false)
#27 C:xampphtdocsmagentogeneratedcodeMagentoFrameworkViewLayoutInterceptor.php(206): MagentoFrameworkViewLayout->renderNonCachedElement('main.content')
#28 C:xampphtdocsmagentovendormagentoframeworkViewLayout.php(489): MagentoFrameworkViewLayoutInterceptor->renderNonCachedElement('main.content')
#29 C:xampphtdocsmagentogeneratedcodeMagentoFrameworkViewLayoutInterceptor.php(193): MagentoFrameworkViewLayout->renderElement('main.content', false)
#30 C:xampphtdocsmagentovendormagentoframeworkViewLayout.php(586): MagentoFrameworkViewLayoutInterceptor->renderElement('main.content', false)
#31 C:xampphtdocsmagentovendormagentoframeworkViewLayout.php(536): MagentoFrameworkViewLayout->_renderContainer('page.wrapper', false)
#32 C:xampphtdocsmagentogeneratedcodeMagentoFrameworkViewLayoutInterceptor.php(206): MagentoFrameworkViewLayout->renderNonCachedElement('page.wrapper')
#33 C:xampphtdocsmagentovendormagentoframeworkViewLayout.php(489): MagentoFrameworkViewLayoutInterceptor->renderNonCachedElement('page.wrapper')
#34 C:xampphtdocsmagentogeneratedcodeMagentoFrameworkViewLayoutInterceptor.php(193): MagentoFrameworkViewLayout->renderElement('page.wrapper', false)
#35 C:xampphtdocsmagentovendormagentoframeworkViewLayout.php(586): MagentoFrameworkViewLayoutInterceptor->renderElement('page.wrapper', false)
#36 C:xampphtdocsmagentovendormagentoframeworkViewLayout.php(536): MagentoFrameworkViewLayout->_renderContainer('root', false)
#37 C:xampphtdocsmagentogeneratedcodeMagentoFrameworkViewLayoutInterceptor.php(206): MagentoFrameworkViewLayout->renderNonCachedElement('root')
#38 C:xampphtdocsmagentovendormagentoframeworkViewLayout.php(489): MagentoFrameworkViewLayoutInterceptor->renderNonCachedElement('root')
#39 C:xampphtdocsmagentogeneratedcodeMagentoFrameworkViewLayoutInterceptor.php(193): MagentoFrameworkViewLayout->renderElement('root', true)
#40 C:xampphtdocsmagentovendormagentoframeworkViewLayout.php(955): MagentoFrameworkViewLayoutInterceptor->renderElement('root')
#41 C:xampphtdocsmagentovendormagentoframeworkInterceptionInterceptor.php(58): MagentoFrameworkViewLayout->getOutput()
#42 C:xampphtdocsmagentovendormagentoframeworkInterceptionInterceptor.php(138): MagentoFrameworkViewLayoutInterceptor->___callParent('getOutput', Array)
#43 C:xampphtdocsmagentovendormagentoframeworkInterceptionInterceptor.php(153): MagentoFrameworkViewLayoutInterceptor->MagentoFrameworkInterception{closure}()
#44 C:xampphtdocsmagentogeneratedcodeMagentoFrameworkViewLayoutInterceptor.php(494): MagentoFrameworkViewLayoutInterceptor->___callPlugins('getOutput', Array, Array)
#45 C:xampphtdocsmagentovendormagentoframeworkViewResultPage.php(257): MagentoFrameworkViewLayoutInterceptor->getOutput()
#46 C:xampphtdocsmagentovendormagentoframeworkViewResultLayout.php(170): MagentoFrameworkViewResultPage->render(Object(MagentoFrameworkAppResponseHttpInterceptor))
#47 C:xampphtdocsmagentovendormagentoframeworkInterceptionInterceptor.php(58): MagentoFrameworkViewResultLayout->renderResult(Object(MagentoFrameworkAppResponseHttpInterceptor))
#48 C:xampphtdocsmagentovendormagentoframeworkInterceptionInterceptor.php(138): MagentoFrameworkViewResultPageInterceptor->___callParent('renderResult', Array)
#49 C:xampphtdocsmagentovendormagentoframeworkInterceptionInterceptor.php(153): MagentoFrameworkViewResultPageInterceptor->MagentoFrameworkInterception{closure}(Object(MagentoFrameworkAppResponseHttpInterceptor))
#50 C:xampphtdocsmagentogeneratedcodeMagentoFrameworkViewResultPageInterceptor.php(130): MagentoFrameworkViewResultPageInterceptor->___callPlugins('renderResult', Array, Array)
#51 C:xampphtdocsmagentovendormagentoframeworkAppHttp.php(139): MagentoFrameworkViewResultPageInterceptor->renderResult(Object(MagentoFrameworkAppResponseHttpInterceptor))
#52 C:xampphtdocsmagentogeneratedcodeMagentoFrameworkAppHttpInterceptor.php(24): MagentoFrameworkAppHttp->launch()
#53 C:xampphtdocsmagentovendormagentoframeworkAppBootstrap.php(256): MagentoFrameworkAppHttpInterceptor->launch()
#54 C:xampphtdocsmagentoindex.php(39): MagentoFrameworkAppBootstrap->run(Object(MagentoFrameworkAppHttpInterceptor))
#55 {main}

<?xml version="1.0"?>
<page xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" layout="1column" xsi:noNamespaceSchemaLocation="urn:magento:framework:View/Layout/etc/page_configuration.xsd">
    <referenceContainer name="content">
        <block class="FuduHelloWorldBlockFrontendIndex"
               name="fudu.frontend.index"
               template="Fudu_HelloWorld::index.phtml" />
    </referenceContainer>
</page>

<?php /** @var FuduHelloWorldBlockFrontendIndex $block */ ?>
<!-- it must be $block to work here, dont know why ...-->
<h1>Students Page</h1>
<div>
    <table name="studentsInfo" style="border: 2px solid black; width: 70%; text-align: center; margin-top:20px;">
        <tr>
            <th style="text-align: center;">ID</th>
            <th style="text-align: center;">Name</th>
            <th style="text-align: center;">Class</th>
            <th style="text-align: center;">Gender</th>
            <th style="text-align: center;">Age</th>
        </tr>
        <?php
            foreach($block->getStudents() as $student):
            ?>
            <tr>
                <td><?php echo $student->getId(); ?></td>
                <td><?php echo $student->getName(); ?></td>
                <td><?php echo $student->getClassID(); ?></td>
                <td><?php echo $student->getGender(); ?></td>
                <td><?php echo $student->getAge(); ?></td>
            </tr>
        <?php endforeach; ?>
    </table>
</div>