Hive import is failing when used --as-parquetfile

I was trying to import order_items table from mysql to hive using below sqoop commands.
before running these commands, I have already created order_items in hive using STORED AS parquetfile

$ sqoop import \

–connect jdbc:mysql://ms.itversity.com:3306/retail_db
–username retail_user
–password itversity
–table order_items
–hive-import
–hive-table byreddy_retail.order_items
–as-parquetfile

This is giving below error:

ERROR sqoop.Sqoop: Got exception running Sqoop: org.kitesdk.data.ValidationException: Dataset name byreddy_retail.order_items is not alphanumeric (plus ‘’)
org.kitesdk.data.ValidationException: Dataset name byreddy_retail.order_items is not alphanumeric (plus '
’)
at org.kitesdk.data.ValidationException.check(ValidationException.java:55)
at org.kitesdk.data.spi.Compatibility.checkDatasetName(Compatibility.java:105)
at org.kitesdk.data.spi.hive.HiveAbstractMetadataProvider.exists(HiveAbstractMetadataProvider.java:158)
at org.kitesdk.data.spi.filesystem.FileSystemDatasetRepository.exists(FileSystemDatasetRepository.java:262)
at org.kitesdk.data.Datasets.exists(Datasets.java:629)
at org.kitesdk.data.Datasets.exists(Datasets.java:646)
at org.apache.sqoop.mapreduce.DataDrivenImportJob.configureMapper(DataDrivenImportJob.java:117)
at org.apache.sqoop.mapreduce.ImportJobBase.runImport(ImportJobBase.java:264)
at org.apache.sqoop.manager.SqlManager.importTable(SqlManager.java:692)
at org.apache.sqoop.manager.MySQLManager.importTable(MySQLManager.java:127)
at org.apache.sqoop.tool.ImportTool.importTable(ImportTool.java:507)
at org.apache.sqoop.tool.ImportTool.run(ImportTool.java:615)
at org.apache.sqoop.Sqoop.run(Sqoop.java:147)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:76)
at org.apache.sqoop.Sqoop.runSqoop(Sqoop.java:183)
at org.apache.sqoop.Sqoop.runTool(Sqoop.java:225)
at org.apache.sqoop.Sqoop.runTool(Sqoop.java:234)
at org.apache.sqoop.Sqoop.main(Sqoop.java:243)

please suggest what is this org.kitesdk.data.ValidationException;Dataset name byreddy_retail.order_items is not alphanumeric (plus ‘_’)