Cannot read properties of undefined reading toggleRowSelection

This error message typically occurs when you try to call a method or access a property on an object that is undefined. In this case, it seems like you are trying to call the toggleRowSelection method on an undefined object.

To fix this error, you need to make sure that the object you are trying to access is defined and has the toggleRowSelection method. You can check if the object is defined by using an if statement or a null check before calling the method. For example:

if (myObject && myObject.toggleRowSelection) {
  myObject.toggleRowSelection();
}

By doing this, you can prevent the error from occurring if the object is undefined or does not have the toggleRowSelection method.