Why lucene health check error will come

[kedar]

Why lucene health check error will come and i did Background indexing but i"m facing the same error. what i have to do for Lucene health check error comes means

[Nic Brough -Adaptavist-]

The warning happens when there is something that might be wrong with your index.  It's either damaged or configured incorrectly.

Could you read what it tells you when you follow the link to the healthcheck for more information?