# Error "Ignoring ffi-1.9.13 because its extensions are not built"
**URL:** https://discuss.elastic.co/t/error-ignoring-ffi-1-9-13-because-its-extensions-are-not-built/56166
**Category:** Logstash
**Created:** [July 22, 2016, 9:52am UTC](https://discuss.elastic.co/t/error-ignoring-ffi-1-9-13-because-its-extensions-are-not-built/56166 "2016-07-22T09:52:52Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@Saurabh\_Jambhule](https://discuss.elastic.co/u/Saurabh_Jambhule)
#### Post date: [July 22, 2016, 9:52am UTC](https://discuss.elastic.co/t/error-ignoring-ffi-1-9-13-because-its-extensions-are-not-built/56166/1 "2016-07-22T09:52:52Z")
I am getting error while installing/ updating plugin logstash-input-beats as:
"Ignoring ffi-1.9.13 because its extensions are not built. Try: gem pristine ffi --version 1.9.13"
But when do that (gem pristine ffi --version 1.9.13), it again shows error as:
"Failed to find gems ["ffi"] = 1.9.13"
I have Logstash 2.3.4 and Filebeat 1.2.3
Please help me out.
Thanks!
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### Author:  [@Suny](https://discuss.elastic.co/u/Suny)
#### Post date: [July 25, 2016, 10:53am UTC](https://discuss.elastic.co/t/error-ignoring-ffi-1-9-13-because-its-extensions-are-not-built/56166/2 "2016-07-25T10:53:55Z")
They say it's OK to ignore it: [https://github.com/elastic/logstash/issues/5642](https://github.com/elastic/logstash/issues/5642)
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### Author:  [@Saurabh\_Jambhule](https://discuss.elastic.co/u/Saurabh_Jambhule)
#### Post date: [July 25, 2016, 4:02pm UTC](https://discuss.elastic.co/t/error-ignoring-ffi-1-9-13-because-its-extensions-are-not-built/56166/3 "2016-07-25T16:02:35Z")
thanks!!
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [July 6, 2017, 4:46am UTC](https://discuss.elastic.co/t/error-ignoring-ffi-1-9-13-because-its-extensions-are-not-built/56166/4 "2017-07-06T04:46:33Z")