I have some issues using changeset... Experiment - 1 <change-set xmlns='http://drools.org/drools-5.0/change-set' xmlns:xs='http://www.w3.org/2001/XMLSchema-instance' xs:schemaLocation='http://drools.org/drools-5.0/change-set drools-change-set-5.0.xsd'<add<resource source='classpath:dir1/dir2/filename.drl' type='DRL' /</add</change-set> when i use the above changeset (thanks to user forum)...the program works fine no issues but i got the following warning messages... (null: 1, 201): schema_reference.4: Failed to read schema document 'drools-change-set-5.0.xsd', because 1) could not find the document; 2) the document could not be read; 3) the root element of the document is not <xsd:schema>. (null: 1, 201): cvc-elt.1: Cannot find the declaration of element 'change-set'. (null: 1, 207): schema_reference.4: Failed to read schema document 'drools-change-set-5.0.xsd', because 1) could not find the document; 2) the document could not be read; 3) the root element of the document is not <xsd:schema>. (null: 1, 285): schema_reference.4: Failed to read schema document 'drools-change-set-5.0.xsd', because 1) could not find the document; 2) the document could not be read; 3) the root element of the document is not <xsd:schema>. (null: 1, 374): schema_reference.4: Failed to read schema document 'drools-change-set-5.0.xsd', because 1) could not find the document; 2) the document could not be read; 3) the root element of the document is not <xsd:schema>. (null: 1, 446): schema_reference.4: Failed to read schema document 'drools-change-set-5.0.xsd', because 1) could not find the document; 2) the document could not be read; 3) the root element of the document is not <xsd:schema>. (null: 1, 534): schema_reference.4: Failed to read schema document 'drools-change-set-5.0.xsd', because 1) could not find the document; 2) the document could not be read; 3) the root element of the document is not <xsd:schema>. Question: how to get rid of this? I completely google the web including user forum no answer.If it is available in the forum, my apologies for missing that info...some one could forward me to that info location. Experiment - 2 <change-set xmlns='http://drools.org/drools-5.0/change-set' xmlns:xs='http://www.w3.org/2001/XMLSchema-instance' xs:schemaLocation='http://drools.org/drools-5.0/change-set http://anonsvn.jboss.org/repos/labs/labs/jbossrules/trunk/drools-api/src/... <add<resource source='classpath:dir1/dir2/filename.drl' type='DRL' /> </add</change-set> when i use the above changeset (grepcode drools-compiler 5.2.1 Final)...after 1 minute it gives the following error message and the thread is open for ever...nothing happen. INFO: KnowledgeDefinitionBuilder::::: changeset == <change-set xmlns='http://drools.org/drools-5.0/change-set' xmlns:xs='http://www.w3.org/2001/XMLSchema-instance' xs:schemaLocation='http://drools.org/drools-5.0/change-set http://anonsvn.jboss.org/repos/labs/labs/jbossrules/trunk/drools-api/src/... > <add> <resource source='classpath:dir1/dir2/filename.drl' type='DRL' /</add> </change-set> (null: 1, 285): schema_reference.4: Failed to read schema document 'http://anonsvn.jboss.org/repos/labs/labs/jbossrules/trunk/drools-api/src/main/resources/change-set-1.0.0.xsd', because 1) could not find the document; 2) the document could not be read; 3) the root element of the document is not <xsd:schema>. (null: 1, 285): cvc-elt.1: Cannot find the declaration of element 'change-set'. Question: I copied the schemaLocation from the src, why it is not working? please advise me? ----- with kind regards, -- View this message in context: http://drools.46999.n3.nabble.com/changeset-xml-schema-error-tp3676510p36... Sent from the Drools: User forum mailing list archive at Nabble.com.