.csv file is not index

Hi Team, i tried to index .csv aur json file from solr UI. but it did not indexand through a error like:- 

Response:{{

{ "responseHeader": \{ "status": 400, "QTime": 27 }

, "error": { "msg": "ERROR: [doc=/en/45_2006] unknown field 'directed_by'", "code": 400 } }}}

 

could you please help me out asap.