Not enough information in error message

[nakvic]

It would be nice to see both producers: registered and attempted to get registered.

Caused by: java.lang.IllegalArgumentException: Unable to register producer, because another producer is already registered, TopicsLoader{18ee7275 id=-1666337187}
at de.halfbit.tinybus.impl.ObjectsMeta.registerAtProducers(ObjectsMeta.java:231)
at de.halfbit.tinybus.TinyBus.processQueue(TinyBus.java:350)
at de.halfbit.tinybus.TinyBus.post(TinyBus.java:205)
at de.halfbit.tinybus.wires.ConnectivityWire.postEvent(ConnectivityWire.java:169)
at de.halfbit.tinybus.wires.ConnectivityWire$1.onReceive(ConnectivityWire.java:112)
at android.app.LoadedApk$ReceiverDispatcher$Args.run(LoadedApk.java:866)
            at android.os.Handler.handleCallback(Handler.java:739)
            at android.os.Handler.dispatchMessage(Handler.java:95)
            at android.os.Looper.loop(Looper.java:135)
            at android.app.ActivityThread.main(ActivityThread.java:5254)
            at java.lang.reflect.Method.invoke(Native Method)