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java.lang.NullPointerException: null	at org.terasology.dynamicCities.settlements.components.DistrictFacetComponent.mapDistrictTypes(DistrictFacetComponent.java:124)	at org.terasology.dynamicCities.settlements.components.DistrictFacetComponent.(DistrictFacetComponent.java:117)	at org.terasology.dynamicCities.settlements.SettlementEntityManager.createSettlement(SettlementEntityManager.java:212)	at org.terasology.dynamicCities.settlements.SettlementEntityManager.update(SettlementEntityManager.java:150)	at org.terasology.engine.modes.StateIngame.update(StateIngame.java:176)	at org.terasology.engine.TerasologyEngine.mainLoop(TerasologyEngine.java:413)	at org.terasology.engine.TerasologyEngine.run(TerasologyEngine.java:368)	at org.terasology.engine.Terasology.main(Terasology.java:152)