Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Solutions on the web

via Pentaho BI Platform Tracking by Etienne Neveu, 2 years ago
There was an error checking the transformation: java.lang.RuntimeException: java.lang.NullPointerException
via pentaho.com by Unknown author, 2 years ago
There was an error checking the transformation: java.lang.RuntimeException: java.lang.NullPointerException
via Pentaho BI Platform Tracking by Etienne Neveu, 2 years ago
There was an error checking the transformation: java.lang.RuntimeException: java.lang.NullPointerException
java.lang.reflect.InvocationTargetException: There was an error checking the transformation: java.lang.RuntimeException: java.lang.NullPointerException at org.pentaho.di.ui.spoon.dialog.CheckTransProgressDialog$1.run(CheckTransProgressDialog.java:74) at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:113)Caused by: java.lang.RuntimeException: java.lang.NullPointerException at org.pentaho.di.trans.TransMeta.checkSteps(TransMeta.java:4222) at org.pentaho.di.ui.spoon.dialog.CheckTransProgressDialog$1.run(CheckTransProgressDialog.java:70) ... 1 moreCaused by: java.lang.NullPointerException at org.pentaho.di.core.row.RowMeta.mergeRowMeta(RowMeta.java:397) at org.pentaho.di.trans.steps.append.AppendMeta.getFields(AppendMeta.java:240) at org.pentaho.di.trans.TransMeta.getThisStepFields(TransMeta.java:1883) at org.pentaho.di.trans.TransMeta.getStepFields(TransMeta.java:1728) at org.pentaho.di.trans.TransMeta.getPrevStepFields(TransMeta.java:1786) at org.pentaho.di.trans.TransMeta.getPrevStepFields(TransMeta.java:1758) at org.pentaho.di.trans.TransMeta.checkSteps(TransMeta.java:4037) ... 2 more