can't load meta to elasticsearch

[wisre]

hi,when i install this plugin,i run metasync but get these error.

MetaSync: Unknown exception processing row: [KeyValue(key=[0, 5, 7, 90, -90, -121, -32, 0, 0, 1, 0, 0, 112, 0, 0, 19, 0, 6, -117, 0, 0, 20, 0, 6, -99, 0, 0, 21, 0, 0, -77, 0, 0, 22, 0, 6, -116], family="t", qualifier=[-108, -69, -100, 59, -93, -69, -85, 59, -78, -69, -70, 59, -63, -69, -55, 59, -48, -69, -40, 59, -33, -69], value=[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], timestamp=1520866779000)]
java.lang.NullPointerException: null
at net.opentsdb.search.TSMetaAugment.serializeToBytes(TSMetaAugment.java:53) ~[opentsdb-elasticsearch-1.1.0-SNAPSHOT.jar:]
at net.opentsdb.search.ElasticSearch.indexTSMeta(ElasticSearch.java:175) ~[opentsdb-elasticsearch-1.1.0-SNAPSHOT.jar:]
at net.opentsdb.core.TSDB.indexTSMeta(TSDB.java:1958) ~[tsdb-2.4.0RC2.jar:]
at net.opentsdb.tools.MetaSync$1TSMetaCB$1CounterCB.call(MetaSync.java:304) ~[tsdb-2.4.0RC2.jar:]
at net.opentsdb.tools.MetaSync$1TSMetaCB$1CounterCB.call(MetaSync.java:292) ~[tsdb-2.4.0RC2.jar:]
at com.stumbleupon.async.Deferred.doCall(Deferred.java:1278) [async-1.4.0.jar:na]
at com.stumbleupon.async.Deferred.runCallbacks(Deferred.java:1257) [async-1.4.0.jar:na]
at com.stumbleupon.async.Deferred.callback(Deferred.java:1005) [async-1.4.0.jar:na]
at org.hbase.async.HBaseRpc.callback(HBaseRpc.java:712) [asynchbase-1.8.0.jar:na]
at org.hbase.async.RegionClient.decode(RegionClient.java:1536) [asynchbase-1.8.0.jar:na]
at org.hbase.async.RegionClient.decode(RegionClient.java:88) [asynchbase-1.8.0.jar:na]
at org.jboss.netty.handler.codec.replay.ReplayingDecoder.callDecode(ReplayingDecoder.java:500) [netty-3.9.4.Final.jar:na]
at org.jboss.netty.handler.codec.replay.ReplayingDecoder.messageReceived(ReplayingDecoder.java:485) [netty-3.9.4.Final.jar:na]
at org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70) [netty-3.9.4.Final.jar:na]
at org.hbase.async.RegionClient.handleUpstream(RegionClient.java:1226) [asynchbase-1.8.0.jar:na]
at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564) [netty-3.9.4.Final.jar:na]
at org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791) [netty-3.9.4.Final.jar:na]
at org.jboss.netty.channel.SimpleChannelHandler.messageReceived(SimpleChannelHandler.java:142) [netty-3.9.4.Final.jar:na]
at org.jboss.netty.channel.SimpleChannelHandler.handleUpstream(SimpleChannelHandler.java:88) [netty-3.9.4.Final.jar:na]
at org.jboss.netty.handler.timeout.IdleStateAwareChannelHandler.handleUpstream(IdleStat