AnyLogic没有报错,模型一运行控制台就出问题

root:
targetLine (TargetLine) : Empty segment in line
java.lang.RuntimeException: root:
targetLine (TargetLine) : Empty segment in line
at com.anylogic.engine.Engine.error(Unknown Source)
at com.anylogic.engine.Agent.error(Unknown Source)
at com.anylogic.engine.Utilities.error(Unknown Source)
at com.anylogic.engine.markup.MarkupShape.error(Unknown Source)
at com.anylogic.engine.markup.TargetLine.doInitialize(Unknown Source)
at com.anylogic.engine.markup.AbstractMarkup.initializeInternal(Unknown Source)
at com.anylogic.engine.markup.Level.lambda$9(Unknown Source)
at java.base/java.util.ArrayList.forEach(ArrayList.java:1540)
at com.anylogic.engine.markup.Level.e(Unknown Source)
at com.anylogic.engine.markup.AbstractMarkupAggregator.initializeInternal(Unknown Source)
at com.anylogic.engine.markup.Level.initialize(Unknown Source)
at 地铁.Main.doCreate(Main.java:3094)
at com.anylogic.engine.Agent.createAsEmbedded(Unknown Source)
at com.anylogic.engine.Agent.create(Unknown Source)
at com.anylogic.engine.Engine.start(Unknown Source)
at com.anylogic.engine.ExperimentSimulation.f(Unknown Source)
at com.anylogic.engine.ExperimentSimulation.run(Unknown Source)
at com.anylogic.engine.ExperimentSimulation.i(Unknown Source)
at com.anylogic.engine.internal.b$b.run(Unknown Source)
Error during drawing animation frame:
java.lang.NullPointerException
at com.anylogic.engine.gui.SVGFrameProducer.n(Unknown Source)
at com.anylogic.engine.gui.SVGFrameProducer.n(Unknown Source)
at com.anylogic.engine.gui.ExperimentHost$1.e(Unknown Source)
at com.anylogic.engine.gui.ExperimentHost$1.n(Unknown Source)
at com.anylogic.engine.gui.SVGFrameCollector.e(Unknown Source)
at com.anylogic.engine.gui.SVGFrameCollector.l(Unknown Source)
at java.base/java.lang.Thread.run(Thread.java:834)