It's just a warning, indicating that some details might not be rendered, not an error. It's a problem of the layout preview in Android Studio. It doesn't affect the final app at all. You can continue your work fearlessly It is just showing some of the components may not be accurate as you have set them in the xml file, but in reality, that view may possess some animation. Just press "Ignore all fidelity warnings for this session" so that you won't be disturbed with this warning again during your current work session.