Hybrid workload with rebalance scenario - error in accessing view

Attached is the log and following is the stack trace -

SDKD: May 10, 2013 1:32:51 AM com.couchbase.sdkd.cbclient.CommandResult warnAbout
SDKD: WARNING: Unknown exception encountered (for operation) future warnings will be suppressed
SDKD: java.lang.RuntimeException: Failed to access the view
SDKD: at com.couchbase.client.CouchbaseClient.query(CouchbaseClient.java:871)
SDKD: at com.couchbase.sdkd.cbclient.ViewQueryCommandContext.execIter(ViewQueryCommandContext.java:252)
SDKD: at com.couchbase.sdkd.cbclient.CommandContext.execute(CommandContext.java:374)
SDKD: at com.couchbase.sdkd.server.SdkServer.executeCommand(SdkServer.java:168)
SDKD: at com.couchbase.sdkd.server.SdkServer.handleRequest(SdkServer.java:189)
SDKD: at com.couchbase.sdkd.server.SdkServer.run(SdkServer.java:245)
SDKD: Caused by: java.util.concurrent.ExecutionException: OperationException: SERVER: error Reason: A view spec can not consist of merges exclusively.
SDKD: at com.couchbase.client.internal.HttpFuture.waitForAndCheckOperation(HttpFuture.java:90)
SDKD: at com.couchbase.client.internal.HttpFuture.get(HttpFuture.java:74)
SDKD: at com.couchbase.client.internal.HttpFuture.get(HttpFuture.java:64)
SDKD: at com.couchbase.client.CouchbaseClient.query(CouchbaseClient.java:864)
SDKD: ... 5 more
SDKD: Caused by: OperationException: SERVER: error Reason: A view spec can not consist of merges exclusively.
SDKD: at com.couchbase.client.protocol.views.NoDocsOperationImpl.parseError(NoDocsOperationImpl.java:106)
SDKD: at com.couchbase.client.protocol.views.ViewOperationImpl.handleResponse(ViewOperationImpl.java:68)
SDKD: at com.couchbase.client.ViewNode$MyHttpRequestExecutionHandler.handleResponse(ViewNode.java:204)
SDKD: at org.apache.http.nio.protocol.AsyncNHttpClientHandler.processResponse(AsyncNHttpClientHandler.java:417)
SDKD: at org.apache.http.nio.protocol.AsyncNHttpClientHandler.inputReady(AsyncNHttpClientHandler.java:242)
SDKD: at com.couchbase.client.http.AsyncConnectionManager$ManagedClientHandler.inputReady(AsyncConnectionManager.java:249)
SDKD: at org.apache.http.impl.nio.DefaultNHttpClientConnection.consumeInput(DefaultNHttpClientConnection.java:172)
SDKD: at org.apache.http.impl.nio.DefaultClientIOEventDispatch.inputReady(DefaultClientIOEventDispatch.java:155)
SDKD: at org.apache.http.impl.nio.reactor.BaseIOReactor.readable(BaseIOReactor.java:161)
SDKD: at org.apache.http.impl.nio.reactor.AbstractIOReactor.processEvent(AbstractIOReactor.java:335)
SDKD: at org.apache.http.impl.nio.reactor.AbstractIOReactor.processEvents(AbstractIOReactor.java:315)
SDKD: at org.apache.http.impl.nio.reactor.AbstractIOReactor.execute(AbstractIOReactor.java:275)
SDKD: at org.apache.http.impl.nio.reactor.BaseIOReactor.execute(BaseIOReactor.java:104)
SDKD: at org.apache.http.impl.nio.reactor.AbstractMultiworkerIOReactor$Worker.run(AbstractMultiworkerIOReactor.java:542)
SDKD: at java.lang.Thread.run(Thread.java:619)