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<@U7BB83NPR> update: I added `primaryStage.show()` after adding the ids to the view!! Forgot this necessary step.  I'm now getting a new error message: ```IllegalStateException: Not on FX application thread; currentThread = main```

I don't know what `clickOn(textfield).write("Something")` does, but it probably needs to be done on the FX thread

`clickOn` is part of the FxRobotInterface class

I assume it's being done on the FX thread, but I actually don't know