spring xd - nameExpression: option named 'nameExpression' is not supported -

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i trying deploy 1 stream in springxd. 

stream create --name myfilestream --definition "http --port=9000 | file --nameexpression=payload.trim()" --deploy

but error getting below: 

command failed org.springframework.xd.rest.client.impl.springxdexception: error option(s) module file of type sink:     nameexpression: option named 'nameexpression' not supported

when remove --nameexpression=payload.trim(),i able create stream..

any suggestion..where problem..

what version using? wasn't added file sink until 1.2.

use 1.2.0.release.

https://jira.spring.io/browse/xd-2717

also, when using nameexpression, need direxpression.


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