A similar error is occurring when importing (Administration->Import/Export--> I choose 'repository_export.zip') using a RedHat JBoss version 5.3.1.BRMS: This is occurring in a Windos 7 Ultimate 64bits+Java 1.7.0_09u. I've tried using the same BRMS and exported the same zip file in other machine (Win7Business 64bits+Java 1.6.0_35) and it imported just fine. Does anyone knows how can I resolve it? Thanks in advance. ------------------------------ If you reply to this email, your message will be added to the discussion below: http://drools.46999.n3.nabble.com/unable-to-import-rules-into-guvnor-tp40... To unsubscribe from unable to import rules into guvnor, click here<http://drools.46999.n3.nabble.com/template/NamlServlet.jtp?macro=... . NAML<http://drools.46999.n3.nabble.com/template/NamlServlet.jtp?macro=...