Feature not available error

Hi ,

I have just cloned, modified db config and run this package for ottoman v2.0 ref purpose, but its throw following Feature not available error

FeatureNotAvailableError: feature not available
at CollectionManager. (D:\sample\try-ottoman-master\node_modules\couchbase\dist\collectionmanager.js:281:31)
at Generator.next ()
at fulfilled (D:\sample\try-ottoman-master\node_modules\couchbase\dist\collectionmanager.js:5:58) {
cause: undefined,
context: HttpErrorContext {
method: 'POST',
request_path: '/pools/default/buckets/travel-sample/scopes',
response_code: 404,
response_body: 'Requested resource not found.\r\n'
}
}