Couldn't Find Type For Class 'com.badlogic.gdx.maps.objects.rectanglemapobject'

Ok, so I made a simple game in libgdx (Android Studio). It works on desktop as well as on Android but in html throws this error : Uncaught Error: java.lang.RuntimeException: java.

Solution 1:

Reflection on gwt requires some massaging to work

https://github.com/libgdx/libgdx/wiki/Reflection#gwt

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Add this to your GdxDefinition.gwt.xml :

<extend-configuration-propertyname="gdx.reflect.include"value="com.badlogic.gdx.maps.objects.RectangleMapObject" />