I'm getting the above error when I run your reactive forms sample and select a date with the
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The issue causing this behavior is that the igx-date-picker value is bind with an empty string.
I logged a bug in our GitHub repository to avoid this behavior.
You can use the Reactive Forms in this StackBlitz sample where the issue is fixed.
Please, let me know if you have any further questions.
Thanks for info. This fixed my issue.