Made a simple module. But in trying to view the url I get this error.

Exception #0 (Magento\Framework\Config\Dom\ValidationException): Element >'referenceBlock', attribute 'after': The attribute 'after' is not allowed. Line: 827

Looks similar to other known issues but not exactly the same. Any Ideas?

  • can you please add your layout.xml file? – Abhishek Panchal Dec 12 '17 at 21:08
  • <page xmlns:xsi="w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../../../../../../../lib/internal/Magento/Framework/View/Layout/etc/page_configuration.xsd" layout="1column"> <body> <referenceContainer name="content"> <block class="cbg\ReviewReminder\Block\helloworld" name="helloworld" template="helloworld.phtml" /> </referenceContainer> </body> </page> – Griehle Dec 12 '17 at 21:55
  • You will notice that in this xml there is no after attribute. It must be in the core code somewhere. Just not sure where. – Griehle Dec 14 '17 at 0:10

modify your XML file

<page xmlns:xsi="w3.org/2001/XMLSchema-instance"; xsi:noNamespaceSchemaLocation="../../../../../../../lib/inte‌​rnal/Magento/Framewo‌​rk/View/Layout/etc/p‌​age_configuration.xs‌​d" layout="1column"> 
        <referenceContainer name="content"> 
            <block class="Cbg\ReviewReminder\Block\Helloworld" name="helloworld" template="Cbg_ReviewReminder::helloworld.phtml" /> 
| improve this answer | |
  • Exception #0 (Magento\Framework\Config\Dom\ValidationException): Theme layout update file 'C:/xampp/htdocs/mage22sd2/app/code/cbg/ReviewReminder/view/frontend/layout/rr_index_index.xml' is not valid. attributes construct error Line: 1 Couldn't find end of Start Tag page line 1 Line: 1 Extra content at the end of the document Line: 1 – Griehle Dec 12 '17 at 22:45

This issue has been addressed in the 2.2.2 release. It was a core Issue.

| improve this answer | |
  • 1
    then how to resolve this issue ? – Manthan Dave Feb 14 '18 at 13:14

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