Warning: Invalid argument supplied for foreach() in _metatags_quick_add_head()

Warning: Invalid argument supplied for foreach() in _metatags_quick_add_head() (line 514 of .../sites/all/modules/metatags_quick/metatags_quick.module).

The warning message appears when DS is used for Search results. Does DS have conflict with Metatags Quick module?

Switching the Metatags Quick module off solved the problem. But is there a way to make the two modules work without problem?

Thank you