6.Try running app again. It isn’t much but you can at least see the same default content being rendered three times and attached to the page. The next step is to modify our children so that we have more interesting content.
So, I open url http://hereMyIP:8666/@PageLayout/index
and instead of the content I get
error: (mojito-dispatcher): Cannot run composite mojit children because there are no children defined in the composite mojit spec.
So I assume - tutorial is wrong or I made mistake - in "application.json" is defined "children" object but composite addon (composite.common.js) reports that there is none, the appliaction.json file is probably parsed and mapped into this.command.instance.config before ac.composite.done() is executed - question is where parsing/mapping is done and why it fails to get config data?