When I open a xaml file. I am getting this error. 'HintSize' property has already been set on 'Delay'

Help Studio
1

When I open a xaml file. I am getting this error. ‘HintSize’ property has already been set on ‘Delay’.

Any suggestions how to open the xaml file ?

2

I have deleted the project.json file and tried opening. Even that is not helping. Any suggestions…please help

3

@Sus_Mi

Check below for your reference

Hope this may help you

Thanks