The function Symfony\Component\Config...der\TreeBuilder::root() has been deprecated: since Symfony 4.3, pass the root name to the constructor instead
(
Ignorable by Annotation
)
If this is a false-positive, you can also ignore this issue in your code via the ignore-deprecated annotation
This function has been deprecated. The supplier of the function has supplied an explanatory message.
The explanatory message should give you some clue as to whether and when the function will be removed and what other function to use instead.