I'm using the all-in-one Eclipse 4.8.0 (since the plugins failed to install on my existing photon), java jdk is 1.8.0_181 in Win7 professional and the problem is with both my own test report and a demo I tried (CustomerListAfter.rptdesign):
!ENTRY org.eclipse.ui 4 0 2018-10-12 09:12:42.288
!MESSAGE Unhandled event loop exception
!STACK 0
java.lang.NullPointerException
at org.eclipse.birt.report.engine.api.impl.GetParameterDefinitionTask.getDefaultValue(GetParameterDefinitionTask.java:338)
at org.eclipse.birt.report.designer.ui.parameters.ScalarParameter.getDefaultValues(ScalarParameter.java:193)
at org.eclipse.birt.report.designer.ui.dialogs.AbstractParameterControlHelper.getPreSetValue(InputParameterDialog.java:528)
at org.eclipse.birt.report.designer.ui.dialogs.AbstractParameterControlHelper.prepareControlDefaultValue(InputParameterDialog.java:515)
Any way to fix this?