Joomla version 3.8

-- HikaShop version -- : 3.2.0
-- Joomla version -- : 3.8
-- PHP version -- : 5.6.31

I have tested the Joomla upgrade to 3.8 on a test install of our shop but if I use the new router I get error messages 404 etc when I try and view products in a category. They don't show.

I switched to Protostar to check it was not my template but get the same issues.
The error is no such directory or I get a 404

Hi
I got the msg below.
I just activated the router for articles and get the error switching it off all works again.

Warning: require_once(/home/dailybre/public_html/new_install-old/libraries/joomla/document/html/renderer/head.php): failed to open stream: No such file or directory in /home/dailybre/public_html/new_install-old/templates/lt_shop/error.php on line 28

Fatal error: require_once(): Failed opening required '/home/dailybre/public_html/new_install-old/libraries/joomla/document/html/renderer/head.php' (include_path='.:/usr/local/php56/pear') in /home/dailybre/public_html/new_install-old/templates/lt_shop/error.php on line 28

in other templates its just a 404

Hi
I renamed the file and because I have error reporting on I have a more detail report as below.

h2><strong>Sorry, this page is not available or has moved.</strong></h2> <p>If you are looking for a particular product it may mean it has been discontinued.<br />Please <a href="/index.php?option=com_contact&view=contact&id=1&catid=4">email</a> or phone (01604) 621531 to check.</p>
/home/dailybre/public_html/new_install-old/plugins/system/jmap/jmap.php:389

Call stack
# Function Location
1 () JROOT/plugins/system/jmap/jmap.php:389
2 plgSystemJMap->postProcessParseRule()
3 call_user_func_array() JROOT/libraries/src/Router/Router.php:596
4 Joomla\CMS\Router\Router->processParseRules() JROOT/libraries/src/Router/SiteRouter.php:593
5 Joomla\CMS\Router\SiteRouter->processParseRules() JROOT/libraries/src/Router/Router.php:231
6 Joomla\CMS\Router\Router->parse() JROOT/libraries/src/Router/SiteRouter.php:138
7 Joomla\CMS\Router\SiteRouter->parse() JROOT/libraries/src/Application/CMSApplication.php:1147
8 Joomla\CMS\Application\CMSApplication->route() JROOT/libraries/src/Application/SiteApplication.php:798
9 Joomla\CMS\Application\SiteApplication->route() JROOT/libraries/src/Application/SiteApplication.php:218
10 Joomla\CMS\Application\SiteApplication->doExecute() JROOT/libraries/src/Application/CMSApplication.php:267
11 Joomla\CMS\Application\CMSApplication->execute() JROOT/index.php:49

Hello,

Your issue seems to be coming from your "Jmap" extension you should probably try it without it, or contact its developer.

Hi
Yes that was the problem. They have a custom 404 selection which I switched off plus they sent a patch.

For other users it was Jsitemap extension.

On another note as the router has changed, the template being used may have a custom 404 error page and if it refers to the old router the 'route' may no longer exist as mined did it would throw a error up. In that case is to redo the 404 error page rather than rely on the template code.