Error "Mixing specified and unspecified groups in one import is not supported" when using the neo4j-import command

Question

Error "Mixing specified and unspecified groups in one import is not supported" when using the neo4j-import command

I am trying to import enough data into Neo4j, which takes too long to be imported using the LOAD CSV method.

For this reason, I try to run the neo4j-import command, but I got the following error, and I did not find any information about this or what it means. Error:

 2015-04-29 14:34:06.225+0000 ERROR [org.neo4j]: Error during import Mixing specified and unspecified group belongings in a single import isn't supported
java.lang.RuntimeException: Mixing specified and unspecified group belongings in a single import isn't supported
    at org.neo4j.unsafe.impl.batchimport.staging.StageExecution.stillExecuting(StageExecution.java:62)
    at org.neo4j.unsafe.impl.batchimport.staging.ExecutionSupervisor.anyStillExecuting(ExecutionSupervisor.java:79)
    at org.neo4j.unsafe.impl.batchimport.staging.ExecutionSupervisor.finishAwareSleep(ExecutionSupervisor.java:102)
    at org.neo4j.unsafe.impl.batchimport.staging.ExecutionSupervisor.supervise(ExecutionSupervisor.java:64)
    at org.neo4j.unsafe.impl.batchimport.staging.ExecutionSupervisors.superviseExecution(ExecutionSupervisors.java:80)
    at org.neo4j.unsafe.impl.batchimport.staging.ExecutionSupervisors.superviseDynamicExecution(ExecutionSupervisors.java:59)
    at org.neo4j.unsafe.impl.batchimport.ParallelBatchImporter.executeStages(ParallelBatchImporter.java:239)
    at org.neo4j.unsafe.impl.batchimport.ParallelBatchImporter.doImport(ParallelBatchImporter.java:159)
    at org.neo4j.tooling.ImportTool.main(ImportTool.java:293)
    at org.neo4j.tooling.ImportTool.main(ImportTool.java:227)
Caused by: java.lang.IllegalStateException: Mixing specified and unspecified group belongings in a single import isn't supported
    at org.neo4j.unsafe.impl.batchimport.input.Groups.getOrCreate(Groups.java:53)
    at org.neo4j.unsafe.impl.batchimport.input.csv.InputNodeDeserialization.initialize(InputNodeDeserialization.java:60)
    at org.neo4j.unsafe.impl.batchimport.input.csv.InputEntityDeserializer.initialize(InputEntityDeserializer.java:67)
    at org.neo4j.unsafe.impl.batchimport.input.csv.InputGroupsDeserializer.createNestedIterator(InputGroupsDeserializer.java:74)
    at org.neo4j.unsafe.impl.batchimport.input.csv.InputGroupsDeserializer.createNestedIterator(InputGroupsDeserializer.java:35)
    at org.neo4j.helpers.collection.NestingIterator.fetchNextOrNull(NestingIterator.java:67)
    at org.neo4j.helpers.collection.PrefetchingIterator.peek(PrefetchingIterator.java:60)
    at org.neo4j.helpers.collection.PrefetchingIterator.hasNext(PrefetchingIterator.java:46)
    at org.neo4j.unsafe.impl.batchimport.staging.IteratorBatcherStep.nextBatchOrNull(IteratorBatcherStep.java:53)
    at org.neo4j.unsafe.impl.batchimport.InputIteratorBatcherStep.nextBatchOrNull(InputIteratorBatcherStep.java:41)
    at org.neo4j.unsafe.impl.batchimport.staging.ProducerStep.process(ProducerStep.java:74)
    at org.neo4j.unsafe.impl.batchimport.staging.ProducerStep$1.run(ProducerStep.java:54)