Error rendering macro 'children'

[Ryan]

A page that contains the children display macro which then has a child page underneath it, displaying another children display macro, throws an error and seems to stop both pages from rendering content. 

The error provided is :

Error rendering macro 'children' : [com.ctc.wstx.exc.WstxLazyException] Undeclared namespace prefix "ac" (for attribute "local-id") at [row,col {unknown-source}]: [1,207]

A use case for this hierarchy may be: 

Services
    - Service 1
        * Command 1
        * Command 2
        * Command 3
    - Service 2
        * Command 1

Whereby the parent "Services" page has the children display macro embedded, as does  each service page underneath it, i.e. Service 1 / Service 2. 

[Stephen Sifers · Accepted solution]

Hello Ryan,

Thank you for the detailed error message and your expected results of the macro. From the information you shared, I'm able to confirm your issue is related to a product defect, Children Display Macro gives an error Undeclared namespace prefix "ac" (for attribute "local-id") | CONFCLOUD-72005 (This looks to be a recently discovered issue).

We ask you to vote and watch the above bug to monitor its status.

Alternatively, there is a workaround for this issue:

Workaround

There are different workarounds to be implemented for this one:

• Change the Excerpt Display parameter of the Children Display macro to none or simple.
• Remove the Table of Contents, Change Change History, or the Children Display macros from the child pages.
• Contact Atlassian support for the removal of the attribute in the macros added for the child pages.

Regards,
Stephen Sifers

[Ryan]

Thanks Stephen. 

Changing the excerpt display parameter to simple, although not ideal, allows the contents to display again.