java.lang.NullPointerException - null error is popped up while excel upload. Not able to get the issue. The following error occurred when importing document in console: -------- com.mendix.core.CoreRuntimeException: com.mendix.systemwideinterfaces.MendixRuntimeException: com.mendix.core.CoreException: com.mendix.core.CoreException: Document could not be imported, because: null at com.mendix.basis.actionmanagement.ActionManager.executeSync(ActionManager.scala:84) Caused by: com.mendix.systemwideinterfaces.MendixRuntimeException: com.mendix.core.CoreException: com.mendix.core.CoreException: Document could not be imported, because: null at com.mendix.util.classloading.Runner.withContextClassLoader(Runner.java:23) Caused by: com.mendix.core.CoreException: com.mendix.core.CoreException: Document could not be imported, because: null at excelimporter.reader.ExcelImporter.startImport(ExcelImporter.java:129) Caused by: com.mendix.core.CoreException: Document could not be imported, because: null at excelimporter.reader.readers.ExcelReader.importData(ExcelReader.java:397) Caused by: java.lang.NullPointerException: null at org.apache.poi.util.LittleEndianInputStream.<init>(LittleEndianInputStream.java:40) at org.apache.poi.hssf.record.RecordInputStream.<init>(RecordInputStream.java:132) at org.apache.poi.hssf.record.RecordInputStream.<init>(RecordInputStream.java:127) at org.apache.poi.hssf.record.RecordFactoryInputStream.<init>(RecordFactoryInputStream.java:185) at org.apache.poi.hssf.eventusermodel.HSSFEventFactory.genericProcessEvents(HSSFEventFactory.java:164) at org.apache.poi.hssf.eventusermodel.HSSFEventFactory.processEvents(HSSFEventFactory.java:129) at excelimporter.reader.readers.ExcelXLSDataReader.readData(ExcelXLSDataReader.java:26) at excelimporter.reader.readers.ExcelReader.importData(ExcelReader.java:355) at excelimporter.reader.ExcelImporter.startImport(ExcelImporter.java:120) at excelimporter.actions.StartImportByTemplate.executeAction(StartImportByTemplate.java:54) at excelimporter.actions.StartImportByTemplate.executeAction(StartImportByTemplate.java:25) at com.mendix.systemwideinterfaces.core.UserAction.execute(UserAction.java:46) at com.mendix.basis.actionmanagement.CoreActionHandlerImpl.doCall(CoreActionHandlerImpl.scala:71) at com.mendix.basis.actionmanagement.CoreActionHandlerImpl.call(CoreActionHandlerImpl.scala:48) at com.mendix.core.actionmanagement.internal.InternalCoreAction.call(InternalCoreAction.scala:25) at com.mendix.basis.actionmanagement.ActionManager.$anonfun$executeSync$2(ActionManager.scala:80) at com.mendix.util.classloading.Runner.withContextClassLoader(Runner.java:19) at com.mendix.basis.actionmanagement.ActionManager.executeSync(ActionManager.scala:79) at com.mendix.basis.actionmanagement.UserActionCallBuilderImpl.execute(UserActionCallBuilderImpl.scala:35) at com.mendix.modules.microflowengine.actions.actioncall.ForegroundJavaAction.doExecute(ForegroundJavaAction.scala:35) at com.mendix.modules.microflowengine.actions.actioncall.ForegroundJavaAction.doExecute(ForegroundJavaAction.scala:11) at com.mendix.modules.microflowengine.actions.actioncall.JavaAction.execute(JavaAction.scala:38) at com.mendix.modules.microflowengine.microflow.impl.MicroflowObject.$anonfun$execute$1(MicroflowObject.scala:31) at scala.Option.flatMap(Option.scala:283) at com.mendix.modules.microflowengine.microflow.impl.MicroflowObject.execute(MicroflowObject.scala:28) at com.mendix.modules.microflowengine.microflow.impl.MicroflowImpl.$anonfun$executeAfterBreakingIfNecessary$2(MicroflowImpl.scala:167) at scala.Option.flatMap(Option.scala:283) at com.mendix.modules.microflowengine.microflow.impl.MicroflowImpl.executeAfterBreakingIfNecessary(MicroflowImpl.scala:167) at com.mendix.modules.microflowengine.microflow.impl.MicroflowImpl.executeAction(MicroflowImpl.scala:114) at com.mendix.systemwideinterfaces.core.UserAction.execute(UserAction.java:46) at com.mendix.basis.actionmanagement.CoreActionHandlerImpl.doCall(CoreActionHandlerImpl.scala:71) at com.mendix.basis.actionmanagement.CoreActionHandlerImpl.call(CoreActionHandlerImpl.scala:48) at com.mendix.core.actionmanagement.internal.InternalCoreAction.call(InternalCoreAction.scala:25) at com.mendix.basis.actionmanagement.CoreActionHandlerImpl.$anonfun$runMonitoredAction$1(CoreActionHandlerImpl.scala:59) at com.mendix.basis.actionmanagement.ActionMonitoring$.$anonfun$monitor$1(ActionMonitoring.scala:50) at com.mendix.util.classloading.Runner.withContextClassLoader(Runner.java:19) at com.mendix.basis.actionmanagement.ActionMonitoring$.monitor(ActionMonitoring.scala:50) at com.mendix.basis.actionmanagement.CoreActionHandlerImpl.runMonitoredAction(CoreActionHandlerImpl.scala:59) at com.mendix.basis.actionmanagement.CoreActionHandlerImpl.call(CoreActionHandlerImpl.scala:46) at com.mendix.core.actionmanagement.internal.InternalCoreAction.call(InternalCoreAction.scala:25) at com.mendix.basis.actionmanagement.ActionManager.$anonfun$executeAsync$3(ActionManager.scala:64) at scala.concurrent.Future$.$anonfun$apply$1(Future.scala:672) at scala.concurrent.impl.Promise$Transformation.run(Promise.scala:431) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) at java.base/java.lang.Thread.run(Thread.java:834) Please guide how to resolve this error
asked
Kirti Kushwah
1 answers
1
I usually only get an error with the excel importer if the version of my excel file is not correct. It can sometimes make a difference to switch from XSLS to XLS. To test it you can try to import a very simple new excel file to see if it works.