jenkins error

error.log

INFO    ?        ?                             MapperParsingException[Failed to parse mapping [config]: The [string] type is removed in 5.0. You should now use either a [text] or […
INFO    ?        ?                             at org.elasticsearch.cluster.metadata.MetaDataCreateIndexService$1.execute(MetaDataCreateIndexService.java:334)                       
INFO    ?        ?                             at org.elasticsearch.cluster.ClusterStateUpdateTask.execute(ClusterStateUpdateTask.java:45)                                           
INFO    ?        ?                             at org.elasticsearch.cluster.service.InternalClusterService.runTasksForExecutor(InternalClusterService.java:463)                      
INFO    ?        ?                             at org.elasticsearch.cluster.service.InternalClusterService$UpdateTask.run(InternalClusterService.java:774)                           
INFO    ?        ?                             at org.elasticsearch.common.util.concurrent.EsThreadPoolExecutor$FilterRunnable.run(EsThreadPoolExecutor.java:227)                    
INFO    ?        ?                             at org.elasticsearch.common.util.concurrent.PrioritizedEsThreadPoolExecutor$TieBreakingPrioritizedRunnable.runAndClean(PrioritizedEsT…
INFO    ?        ?                             at org.elasticsearch.common.util.concurrent.PrioritizedEsThreadPoolExecutor$TieBreakingPrioritizedRunnable.run(PrioritizedEsThreadPoo…
INFO    ?        ?                             at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)                                                    
INFO    ?        ?                             at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)                                                    
INFO    ?        ?                             at java.lang.Thread.run(Thread.java:745)                                                                                              
INFO    ?        ?                             Caused by: java.lang.IllegalArgumentException: The [string] type is removed in 5.0. You should now use either a [text] or [keyword] f…
INFO    ?        ?                             at org.elasticsearch.index.mapper.core.StringFieldMapper$TypeParser.parse(StringFieldMapper.java:136)                                 
INFO    ?        ?                             at org.elasticsearch.index.mapper.object.ObjectMapper$TypeParser.parseProperties(ObjectMapper.java:284)                               
INFO    ?        ?                             at org.elasticsearch.index.mapper.object.ObjectMapper$TypeParser.parseObjectOrDocumentTypeProperties(ObjectMapper.java:205)           
INFO    ?        ?                             at org.elasticsearch.index.mapper.object.RootObjectMapper$TypeParser.parse(RootObjectMapper.java:142)                                 
INFO    ?        ?                             at org.elasticsearch.index.mapper.DocumentMapperParser.parse(DocumentMapperParser.java:113)                                           
INFO    ?        ?                             at org.elasticsearch.index.mapper.DocumentMapperParser.parse(DocumentMapperParser.java:94)                                            
INFO    ?        ?                             at org.elasticsearch.index.mapper.MapperService.parse(MapperService.java:410)                                                         
INFO    ?        ?                             at org.elasticsearch.index.mapper.MapperService.merge(MapperService.java:222)                                                         
INFO    ?        ?                             at org.elasticsearch.cluster.metadata.MetaDataCreateIndexService$1.execute(MetaDataCreateIndexService.java:331)                       
INFO    ?        ?                             ... 9 more