Installed Magento 2, tried to go to the Magento Frontend/Admin in Chrome, but only get "This site can’t be reached"
Exception #0 (Magento\Framework\Config\Dom\ValidationException): Element 'css': This element is not expected
Magento 2 changing from production to developer I get error Element 'remove': This element is not expected
Fatal error: Call to a member function isRequired() on a non-object in app/code/core/Mage/Captcha/Model/Observer.php on line 167
Magento 2: Unable to unserialize value. Error: Control character error, possibly incorrectly encoded
Error Exception message: The product's required option(s) weren't entered. Make sure the options are entered and try again. Magento 2
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