TypeError: Cannot read property 'setData' of undefined How to solve this error

This error indicates that you are accessing the "setData" property of an undefined object. This may be caused by you not referencing the object correctly or the object does not have a "setData" property.

Solution:

1. Check that the object is correctly referenced
2. Check if this object has a "setData" attribute
3. Check if this object is in the correct scope
4. Check that you initialized the object correctly

If that doesn't solve the problem, please provide more context code and details and I'll try to help you.