java.lang.NullPointerException

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    • java.lang.NullPointerException at jmri.InstanceManager.setDefault(InstanceManager.java:235) at jmri.managers.ManagerDefaultSelector.configure(ManagerDefaultSelector.java:159) at jmri.managers.ManagerDefaultSelector.initialize(ManagerDefaultSelector.java:214) at jmri.implementation.JmriConfigurationManager.initializeProvider(JmriConfigurationManager.java:249) at jmri.implementation.JmriConfigurationManager.lambda$2(JmriConfigurationManager.java:245)
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