GameObject.name to array:String[]

Hi All, I a newbie - be warned and Im getting thwarted over here in my attempts to do something quite simple. Im taking a variable with the contents -"GameObject.name" which Im assuming is a string (but maybe its a sequence of characters??) and trying to strip out the words to an array using space " " as a divider for determining elements. Im having no luck.

Ive come up with the code below which throw the following error:

No appropriate version of 'String.Split' for the argument list '(String)' was found.

I know the 'offericon.name' is a 3 word value. and I want to access the second word to call another set of gameObjects which match the originals.

here is the code snippet:

  if (cursorName == offeringIcon.name) {
                       
         //split the contents into a temporary array
         var readString.String[]=cursorName.Split(" ");    
         print (readString.lenght);
         print (readString[0]);
         print (readString[1]);
         print (readString[2]);
                               
           ProcessOffering(); 
           response = 2; // player has correct offering
        }