Hi facing the below problem.i don't understand what to do.please find the excel sheet(Test1.xls) in the attachement, which i'm using for this please suggest the fix for this. Warning: Cannot read name ranges for Excel_BuiltIn__FilterDatabase_1 - setting to empty [8,7]: [ERR 102] Line 8:7 mismatched input '==' in rule "Employee1_11" [18,7]: [ERR 102] Line 18:7 mismatched input '==' in rule "Employee1_12" [0,0]: Parser returned a null Package java.lang.IllegalArgumentException: Could not parse knowledge. at com.sample.DecisionTableTest.readKnowledgeBase(DecisionTableTest.java:56) at com.sample.DecisionTableTest.main(DecisionTableTest.java:27) Test1.xls <http://drools.46999.n3.nabble.com/file/n4020308/Test1.xls> Test1.xls <http://drools.46999.n3.nabble.com/file/n4020308/Test1.xls> -- View this message in context: http://drools.46999.n3.nabble.com/mismatched-input-in-rule-Employee1-11-t... Sent from the Drools: User forum mailing list archive at Nabble.com. _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users