Term from View Relationship problems

I created a Panel page which use Views context to collect children of a term and pass the context to a pane. When I view the page, an error occured. It said that function taxonomy_get_term() not found on 'ctools/views_content/plugins/relationships/term_from_view.inc'. It looks like taxonomy_get_term() function has been replaced by taxonomy_term_load() in Drupal 7. Am I correct, or am I missing module dependencies or something?

After replacing call to taxonomy_get_term() function with taxonomy_term_load(), the error message disappear, but Panels is unable to pass the context from View context to any panes.

I am not an expert in Panels, but after comparing to another working plugin there is difference in returning context. Views context returns ctools_context_create('term', $term) whereas the working plugin returns ctools_context_create('entity:taxonomy_term', $term). And after replacing the code, Panels successfully passes the context to pane.

Is this correct or am I just lucky?

oh, btw I just found something this morning, the required context should be a view whose base table is "taxonomy_term_data". Currently, the base table is "term_data".