Got Exception in route edit

[iJanki]

Going editing a route in the admin:

http://cmf.lo/app_dev.php/admin/bundle/routingextra/route//cms/routes/en/company/team/edit

I get this error:

The option "rootNode" does not exist. Known options are: "attr", "by_reference", "cascade_validation", "choice_list", "choices", "class", "compound", "constraints", "csrf_field_name", "csrf_protection", "csrf_provider", "data", "data_class", "disabled", "empty_data", "error_bubbling", "error_mapping", "extra_fields_message", "intention", "invalid_message", "label", "label_attr", "mapped", "max_length", "model_manager", "parent", "pattern", "post_max_size_message", "preferred_choices", "property", "property_path", "query", "read_only", "required", "root_node", "select_root_node", "sonata_admin", "sonata_field_description", "template", "translation_domain", "trim", "validation_constraint", "validation_groups", "virtual"

I'm using php 5.4 and latest trees.
Any other got this error?

[uwej711]

This has been renamed to root_node to conform to the other attributes' names but shouldn't be part of the sandbox yet. Until this gets fixed the quickest workaround is to rename the attribute in the sandbox's AdminBundle's admin classes to root_node. As this is currently work in progress expect other issues ...

[iJanki]

Thanks, works for now.