In that case I am sure you are not at the right page.
I can see at line 7, you are navigating to another page, so the page must have been changed.
try adding the object again
try the above statements in earlier post before line 7, it will work . if it is working then adding the object again will help.
I can see at line 7, you are navigating to another page, so the page must have been changed.
try adding the object again
try the above statements in earlier post before line 7, it will work . if it is working then adding the object again will help.

