TAO 3.0 and on introduces many changes to the structures.xml files, migration from old-style structures.xml is very straightforward.

HERE MIGRATION STEPS

Do I have the legacy version of structures.xml:

The presence of child element of both element and element indicates the new format.

Where as absence of many url attributes in the child element of the signals a legacy version of structures.xml

Check out above changes to see if you have the new format of structures.xml.

Example

Here’s an example of what a legacy structures.xml file might look like:

        Create and design items and exercises.

The new-style structures.xml might look like what is below.

        Create and design items and exercises.