Magento – Invalid response line returned from server: HTTP/2 200 – message after update to 2.1.7

errormagento-2.1.7magento2

I seem to be getting this message after i updated to Magento 2.1.7 – it only displays on the contact page when someone submits the form.

Invalid response line returned from server: HTTP/2 200

I see this in the magento log file:

main.CRITICAL: Notice: Array to string conversion in
/home/xxx/public_html/vendor/magento/module-catalog/Block/Product/View/Attributes.php
on line 83 [] []

Best Answer

I was stuck in Magento 2.3.3 extension manager and just replaced

!2 with <2

and it worked.

Related Solutions

Difference Between ResourceConnection and Resource in Magento 2

Magento\Framework\App\Resource and \Magento\Framework\App\ResourceConnection it's the same classes. Magento\Framework\App\Resource was renamed to \Magento\Framework\App\ResourceConnection in Magento 2.0 to support php 7.0.

Magento – Error:Exception:Use of undefined constant ICONV_IMPL – assumed ‘ICONV_IMPL’

You have to go into your php.ini file and uncomment this

[iconv]
;iconv.input_encoding = ISO-8859-1
;iconv.internal_encoding = ISO-8859-1
;iconv.output_encoding = ISO-8859-1

So that it looks like this

[iconv]
iconv.input_encoding = ISO-8859-1
iconv.internal_encoding = ISO-8859-1
iconv.output_encoding = ISO-8859-1

Also change this

;intl.error_level = E_WARNING

Into this

intl.error_level = 0

And make sure you have installed php extensions: php-iconv and php-intl, then restart apache.

Best Answer

Related Solutions

Difference Between ResourceConnection and Resource in Magento 2

Magento – Error:Exception:Use of undefined constant ICONV_IMPL – assumed ‘ICONV_IMPL’

Related Topic