trying to build a new beats plugin
make package
fails with bellow error
Working directory=/go
Copying main source folder /source to folder /go
Fetching dependencies...
Execute /scripts/before_build.sh
cp: cannot stat 'fields.yml': No such file or directory
vendor/github.com/elastic/beats/libbeat/scripts/Makefile:469:
recipe for target 'prepare-package-cgo' failed
make[1]: *** [prepare-package-cgo] Error 1
make[1]: Leaving directory
'/home/smartthink/go/src/github.com/Manjukb/smartcenter'
vendor/github.com/elastic/beats/libbeat/scripts/Makefile:513:
recipe for target 'package' failed
make: *** [package] Error 2
please let me know what might be the issue