import bom failed , please help me
2016-11-11 14:42:19,667 INFO [DataSource Task Executor-3069] wt.system.err wcadmin - (wt.ixb.publicforhandlers.ixbResource/UNIT_HAS_TO_BE_EACH) wt.ixb.publicforhandlers.LogHelper$IxbException: 把σ竚度ぉ虫琌–箂ン
2016-11-11 14:42:19,667 INFO [DataSource Task Executor-3069] wt.system.err wcadmin - at wt.ixb.publicforhandlers.LogHelper.userError(LogHelper.java:225)
2016-11-11 14:42:19,667 INFO [DataSource Task Executor-3069] wt.system.err wcadmin - at wt.ixb.publicforhandlers.LogHelper.userError(LogHelper.java:561)
2016-11-11 14:42:19,667 INFO [DataSource Task Executor-3069] wt.system.err wcadmin - at com.ptc.windchill.ixb.importer.bom.BOMSheetImporter.validateRefDesigAndQuantity(BOMSheetImporter.java:833)
2016-11-11 14:42:19,667 INFO [DataSource Task Executor-3069] wt.system.err wcadmin - at com.ptc.windchill.ixb.importer.bom.BOMSheetImporter.validateSheetTypeAttributes(BOMSheetImporter.java:673)
2016-11-11 14:42:19,667 INFO [DataSource Task Executor-3069] wt.system.err wcadmin - at com.ptc.windchill.ixb.importer.bom.BOMSheetImporter.importSheetElements(BOMSheetImporter.java:129)
2016-11-11 14:42:19,667 INFO [DataSource Task Executor-3069] wt.system.err wcadmin - at com.ptc.windchill.ixb.importer.StandardImportService.importInChunk(StandardImportService.java:1230)
2016-11-11 14:42:19,667 INFO [DataSource Task Executor-3069] wt.system.err wcadmin - at com.ptc.windchill.ixb.importer.StandardImportService.doSameTypeSheetImport(StandardImportService.java:1185)
2016-11-11 14:42:19,667 INFO [DataSource Task Executor-3069] wt.system.err wcadmin - at com.ptc.windchill.ixb.importer.StandardImportService.doPreviewOrImport(StandardImportService.java:884)
2016-11-11 14:42:19,667 INFO [DataSource Task Executor-3069] wt.system.err wcadmin - at com.ptc.windchill.ixb.importer.StandardImportService.doPreview(StandardImportService.java:375)
2016-11-11 14:42:19,667 INFO [DataSource Task Executor-3069] wt.system.err wcadmin - at sun.reflect.GeneratedMethodAccessor1764.invoke(Unknown Source)
2016-11-11 14:42:19,667 INFO [DataSource Task Executor-3069] wt.system.err wcadmin - at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
2016-11-11 14:42:19,667 INFO [DataSource Task Executor-3069] wt.system.err wcadmin - at java.lang.reflect.Method.invoke(Method.java:606)
2016-11-11 14:42:19,667 INFO [DataSource Task Executor-3069] wt.system.err wcadmin - at wt.services.ServiceFactory$ServerInvocationHandler.invoke(ServiceFactory.java:399)
2016-11-11 14:42:19,667 INFO [DataSource Task Executor-3069] wt.system.err wcadmin - at com.sun.proxy.$Proxy320.doPreview(Unknown Source)
2016-11-11 14:42:19,667 INFO [DataSource Task Executor-3069] wt.system.err wcadmin - at com.ptc.windchill.ixb.importer.jca.mvc.ImportJobValidationBuilder.buildComponentData(ImportJobValidationBuilder.java:58)
2016-11-11 14:42:19,667 INFO [DataSource Task Executor-3069] wt.system.err wcadmin - at com.ptc.jca.mvc.components.DefaultJcaComponentDataBuilder.buildRawDataAsync(DefaultJcaComponentDataBuilder.java:91)
2016-11-11 14:42:19,667 INFO [DataSource Task Executor-3069] wt.system.err wcadmin - at com.ptc.mvc.components.ds.AbstractDataSourceComponentDataBuilder$ComponentDataSourceTask.run(AbstractDataSourceComponentDataBuilder.java:398)
2016-11-11 14:42:19,667 INFO [DataSource Task Executor-3069] wt.system.err wcadmin - at com.ptc.mvc.ds.server.DefaultDataSourceManager$DataSourceTaskCallable.callInContext(DefaultDataSourceManager.java:226)
2016-11-11 14:42:19,667 INFO [DataSource Task Executor-3069] wt.system.err wcadmin - at com.ptc.mvc.ds.server.DefaultDataSourceManager$DataSourceTaskCallable.callInContext(DefaultDataSourceManager.java:195)
2016-11-11 14:42:19,667 INFO [DataSource Task Executor-3069] wt.system.err wcadmin - at com.ptc.mvc.ds.server.MethodContextCallable.call(MethodContextCallable.java:47)
2016-11-11 14:42:19,667 INFO [DataSource Task Executor-3069] wt.system.err wcadmin - at java.util.concurrent.FutureTask.run(FutureTask.java:262)
2016-11-11 14:42:19,667 INFO [DataSource Task Executor-3069] wt.system.err wcadmin - at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
2016-11-11 14:42:19,667 INFO [DataSource Task Executor-3069] wt.system.err wcadmin - at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
2016-11-11 14:42:19,667 INFO [DataSource Task Executor-3069] wt.system.err wcadmin - at java.lang.Thread.run(Thread.java:745)
2016-11-11 14:42:19,667 INFO [DataSource Task Executor-3068] wt.system.err wcadmin - (wt.ixb.publicforhandlers.ixbResource/UNIT_HAS_TO_BE_EACH)
