Bucket Configuration exception

I was trying to execute sqoop export to fetch data from HDFS to couchbase. It throws vbucket configuration exception. This is the sqoop export I was executing
sqoop export --username xxxxx --password rrrrr --connect http://xxx-couchbase.xxx.xxx.com:8091/pools --table default --export-dir /tmp/ot2b/gbt_model_AB/otb_103/part-00000 --input-fields-terminated-by ‘\t’

and the error log is
Error: com.couchbase.client.vbucket.ConfigurationException: Could not fetch a valid Bucket configuration. at com.couchbase.client.vbucket.provider.BucketConfigurationProvider.bootstrap(BucketConfigurationProvider.java:123) at com.couchbase.client.vbucket.provider.BucketConfigurationProvider.getConfig(BucketConfigurationProvider.java:374) at com.couchbase.client.CouchbaseConnectionFactory.getVBucketConfig(CouchbaseConnectionFactory.java:317) at com.couchbase.client.CouchbaseClient.(CouchbaseClient.java:258) at com.couchbase.sqoop.mapreduce.db.CouchbaseOutputFormat$CouchbaseRecordWriter.(CouchbaseOutputFormat.java:130) at com.couchbase.sqoop.mapreduce.db.CouchbaseOutputFormat.getRecordWriter(CouchbaseOutputFormat.java:89) at org.apache.hadoop.mapred.MapTask$NewDirectOutputCollector.(MapTask.java:647) at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:767) at org.apache.hadoop.mapred.MapTask.run(MapTask.java:341) at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:164) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:422) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1698) at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:158)