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via Stack Overflow by chris.shi
, 1 year ago
Prefix must resolve to a namespace: ff:kk
org.apache.xpath.domapi.XPathStylesheetDOM3Exception: Prefix must resolve to a namespace:  ff:kk	at org.apache.xpath.compiler.XPathParser.errorForDOM3(	at org.apache.xpath.compiler.Lexer.mapNSTokens(	at org.apache.xpath.compiler.Lexer.tokenize(	at org.apache.xpath.compiler.Lexer.tokenize(	at org.apache.xpath.compiler.XPathParser.initXPath(	at org.apache.xpath.XPath.(	at	at	at	at	at	at	at	at