我当前正在使用MapBox导航UI v0.27.0。 每当我进行自我测试时，一切正常，但是我的用户遇到以下崩溃：
Fatal Exception: java.lang.IllegalThreadStateException
at java.lang.Thread.start(Thread.java:724)
at com.mapbox.services.android.navigation.v5.navigation.s.start(RouteProcessorBackgroundThread.java:37)
at com.mapbox.services.android.navigation.v5.navigation.s.a(RouteProcessorBackgroundThread.java:56)
at com.mapbox.services.android.navigation.v5.navigation.b.a(LocationUpdater.java:44)
at com.mapbox.services.android.navigation.v5.navigation.b$a.a(LocationUpdater.java:77)
at com.mapbox.services.android.navigation.v5.navigation.b$a.onSuccess(LocationUpdater.java:64)
at com.mapbox.android.a.a.j$a.onLocationChanged(MapboxFusedLocationEngineImpl.java:114)
at android.location.LocationManager$ListenerTransport._handleMessage(LocationManager.java:292)
at android.location.LocationManager$ListenerTransport.-wrap0(Unknown Source)
at android.location.LocationManager$ListenerTransport$2.handleMessage(LocationManager.java:244)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Loope**strong text**r.java:164)
at android.app.ActivityThread.main(ActivityThread.java:7000)
at java.lang.reflect.Method.invoke(Method.java)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:441)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1408)
由于它似乎不是直接从我的代码中触发的，所以我想了解是什么原因引起的以及如何避免它。