undefined method `to_hash' for an instance of String (haml-rails version 2.1.0)

[hzhangatswann]

We have been using haml-rails 2.0.1. recently we tried to upgrade to version 2.1.0. but it raised this error straight away:

undefined method `to_hash' for an instance of String

in this statement
Haml::Engine.new(IO.read("/path/to/example.xml.haml")).render(self)

our environment:
rails 7.1
ruby 3.3

[muriloime]

hi @hzhangatswann did you manage to solve this issue ?