CCK Migrate filefield to file error I tried using CCK Migrate and this happens and field fails to get migrated, can someone let me know how to read this kind of error:

Requesting rollback of field "field_evt_mat_download" due to failure to convert record:

array ( 'entity_id' =&gt; '4715', 'revision_id' =&gt; '4742', 'field_evt_mat_download_fid' =&gt; '9109', 'field_evt_mat_download_data' =&gt; 'a:1:{s:11:"description";s:32:"Presentation (Open as Read Only)";}', 'delta' =&gt; '8', 'entity_type' =&gt; 'node', 'language' =&gt; 'und', 'bundle' =&gt; 'event', 'field_evt_mat_download_description' =&gt; 'Presentation (Open as Read Only)', 'field_evt_mat_download_display' =&gt; '1', )

Cause:

exception 'PDOException' with message 'SQLSTATE[23000]: Integrity constraint violation: 1062 Duplicate entry 'public://local marketing/event/member-appreciation-october/2012/' for key 'uri'' in D:\xampp\htdocs\aadev\dev7\includes\database\database.inc:2171 Stack trace: #0 D:\xampp\htdocs\aadev\dev7\includes\database\database.inc(2171): PDOStatement-&gt;execute(Array) #1
Well I figured out that the field_evt_mat_download is actually in field_data_field_evt_mat_download so I solved the problem myself.