> -----Original Message-----
> From: Cedric Augustin [mailto:[EMAIL PROTECTED]
> Sent: Wednesday, April 05, 2006 10:15 AM
> We curently have a customized servlet to generate PDF for
> various projects in production. This servlet is build on fop
> version 0.20.5. We do not plan to switch to new version
> unless version 1.0.
> [ERROR] org.apache.fop.apps.FOPException: The id "ln2350"
> already exists in this document
>
> I check and found no duplicate id in the fo file. A search in
> the mailing list archive gave me J.Pietschmann answer about
> this problem :
>
> FOP 0.20.5 has a few bug which cause this error message even
> for perfectly legal FO input.
> - Do not reference IDs in static content.
> - Do not reference IDs in table cells which are in rows with
> a keep-together or keep-with-next property or which are
> followed by a row with a keep-with-previous property.
> - Be careful referencing IDs in content which may be
> rebalanced due to footnotes or due to span="all" blocks in a
> multi-column layout.
Yes, FOP 0.20.5 is buggy here.
> My doc use two column layout with some page on one column, so
> I think I am in trouble... :(
As a workaround, when I have a multi-column layout, I use a fo:block
nested in a spanned fo:block to define an id:
<fo:block span="all">
<fo:block id="{generate-id(.)}">
...
</fo:block>
</fo:block>
Hope that helps.
Pascal
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