Team,
I am getting similar error. I have a existing React application and I am trying to integrate JqxDataTimeInput widget. But its giving below error:
Uncaught TypeError: Cannot set property ‘originalVal’ of undefined
at jqxcore.js:15
at Object.<anonymous> (jqxcore.js:15)
I even deleted package-lock.json then changed React versions as suggested above, deleted the node_modules folder and then ran npm install.
But the error remains same.
Can you please help?