Nullpointer exception on starting Ivy Engine
![alt text][1]I I am facing a problem that can not start the engine. I also have no ideas about this. Does anyone faced the same problem?
[ 78%] Starting DefaultApplicationManager
Error while starting Axon.ivy Engine
java.lang.NullPointerException
at ch.ivyteam.ivy.server.internal.apps.update.DefaultApplicationUpdater.isDeprecatedCadaver(DefaultApplicationUpdater.java:88)
at ch.ivyteam.ivy.server.internal.apps.update.DefaultApplicationUpdater.deleteDeprecatedProjects(DefaultApplicationUpdater.java:77)
![alt text][1]
**Solution**: go delete record from iwa_processmodelversion and iwa_processmodel which is deprecated. Thanks @trungdv
[1]: https://answers.axonivy.com/upfiles/10-31-2017_4-56-01_PM.png