org.apache.xpath.domapi.XPathStylesheetDOM3Exception: Prefix must resolve to a namespace: ff:kk

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    • org.apache.xpath.domapi.XPathStylesheetDOM3Exception: Prefix must resolve to a namespace: ff:kk at org.apache.xml.security.transforms.implementations.TransformXPath2Filter.enginePerformTransform(TransformXPath2Filter.java:138) at org.apache.xml.security.transforms.Transform.performTransform(Transform.java:304) at org.apache.xml.security.transforms.Transforms.performTransforms(Transforms.java:277) at org.apache.xml.security.signature.Reference.getContentsAfterTransformation(Reference.java:448) Caused by: org.apache.xpath.domapi.XPathStylesheetDOM3Exception: Prefix must resolve to a namespace: ff:kk at org.apache.xpath.compiler.XPathParser.errorForDOM3(XPathParser.java:655) at org.apache.xpath.compiler.Lexer.mapNSTokens(Lexer.java:647) at org.apache.xpath.compiler.Lexer.tokenize(Lexer.java:365) at org.apache.xpath.compiler.Lexer.tokenize(Lexer.java:98) at org.apache.xpath.compiler.XPathParser.initXPath(XPathParser.java:112) at org.apache.xpath.XPath.<init>(XPath.java:178) at org.apache.xml.security.utils.XalanXPathAPI.createXPath(XalanXPathAPI.java:159) at org.apache.xml.security.utils.XalanXPathAPI.eval(XalanXPathAPI.java:134) at org.apache.xml.security.utils.XalanXPathAPI.selectNodeList(XalanXPathAPI.java:82) at org.apache.xml.security.transforms.implementations.TransformXPath2Filter.enginePerformTransform(TransformXPath2Filter.java:117) ... 4 more

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