Troubleshooting FOP Errors

If the transformation works well, but the FOP generates an error, obtain a copy of RenderX's Unofficial DTD for XSL Formatting Objects. You can find this at Although this DTD is not official (it is more limited than what the W3C XSL recommendation defines), it is a helpful debugging tool.

To validate the generated XML against this DTD:
1. Copy the DTD to a location such as C:\fo.dtd.
2. Include a document type declaration, such as the following, in your generated document:
<!DOCTYPE fo:root SYSTEM "/fo.dtd">

3. Turn off post-processing.
4. Apply the stylesheet.
5. Save the resulting XML document.
6. Open the saved XML document in Stylus Studio.
7. Click Validate Document .
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