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Error message
(Location of error
unknown)org.apache.fop.fo.Validation
Exception: Property id “_Ref191196753”
previously used; id values must be
unique in document.
Any ideas on what may cause this? Is it because I have a for-each and apply the same template multiple times?
The specification states the id of an element must be unique.
The following code produces the error message you get.
You need to search your fo-file to locate the occurences of the elements with the same id. Then make changes in your XSLT to eliminate these.