I'm banging my head on my desk using this binding mistake.. I've checked a number of from the postings for that BindingExpression path error and cannot see anything at all that actually works with my situation. There is in fact plenty of code with extension .py that utilizes getters and https://medium.com/@Navrajinfratech/luxury-rises-beyond-limits-m3m-altitude-gurgaon-7f75d0a86e63