[GENERAL] PostreSQL PostgreSQL 8.1.18 and Tsearch2 context error

Hi guys, I'm working with full-text search on my project, however i'm receiving an "Config file error: 7 ERROR: no tsearch config CONTEXT" message but i don't know what it means. The entire error message received is: "SQLSTATE[F]: Config file error: 7 ERROR: no tsearch config CONTEXT: SQL st

[GENERAL] PostreSQL PostgreSQL 8.1.18 and Tsearch2 context error

Hi guys, I'm working with full-text search on my project, however i'm receiving an "Config file error: 7 ERROR: no tsearch config CONTEXT" message but i don't know what it means. Can you help me about this error?, i will apreciate so much any suggestion about it. Thank's in advance, Rodrigo