bin/logstash-plugin install logstash-filter-yaml failed with error does not exist

[nguyenlp]

Please post all product and debugging questions on our forum. Your questions will reach our wider community members there, and if we confirm that there is a bug, then we can open a new issue here.

For all general issues, please provide the following details for fast resolution:

• Version: LS 5.1
• Operating System: RedHat Linux 6/7 also Mac OS
• Config File (if you have sensitive info, please remove it):
• Sample Data:
• Steps to Reproduce:

  Longs-MacBook-Pro-2:bin long$ pwd
  /Users/long/ELK/logstash-5.0.0/bin
  Longs-MacBook-Pro-2:bin long$ ./logstash-plugin install logstash-filter-yaml
  Validating logstash-filter-yaml
  Plugin logstash-filter-yaml does not exist
  ERROR: Installation aborted, verification failed for logstash-filter-yaml

[nguyenlp]

The logstash-filter-yaml does not look to exist on rubygems.org