[TYPO3-commerce] problems with navigation

[Paul Hansen]

Alexander wrote:
> Hello list
> I have a problem. I installed last version of commerce extension and 
> created some categories and products. When i click on some entry in a 
> category menu i get this message:
> 
> Warning: Invalid argument supplied for foreach() in 
> ........typo3conf/ext/commerce/lib/class.tx_commerce_navigation.php on 
> line 204
> 
> Warning: Cannot modify header information - headers already sent by 
> (output started at 
> .....typo3conf/ext/commerce/lib/class.tx_commerce_navigation.php:204) in 
> ......typo3/sysext/cms/tslib/class.tslib_fe.php on line 2898
[...]
> how to fix it?

We've opened a bug report for this:
http://bugs.typo3.org/view.php?id=5546

Could you add your details there so it's all in one place? That may help 
with troubleshooting the issue.

Paul