[TYPO3-dev] tagpack

[Robert Wildling]

Hi,

I try to use tagpack by Jo Hasenau on a TYPO3 4.6.0, but when calling 
the edit page properties I get the following error:

Fatal error: Call to undefined method t3lib_div::array2json() in 
/***...***/typo3conf/ext/tagpack/class.tx_tagpack_ajaxsearch_client.php 
on line 105

Google results are old and mention a TV update as the reason, but I 
don't have TV installed.

Any ideas?
Thanks!