Hi All,    I am new user of Drools tool. I have done a sample business Rule in Drools and tested. It is working fine in Drools. So I validated the package and imported .drl file into talend studio under Meta data (Embedded Rules). The code generated for the business rule is as follows: package modelonsales import salesmodel.Sales import java.util.ArrayList import java.util.HashMap import java.lang.Integer global ArrayList list global HashMap globalMap rule "SalesBR"    dialect "mvel"    when        exists Sales( sales >= "100" )    then        Sales fact0 = new Sales();        fact0.setName( "Discount" );        fact0.setSales( -10 );        insert(fact0 ); end When I executing the job it is giving errors as follows: *Starting job DroolsJob at 14:14 21/11/2011. [statistics] connecting to socket on port 3678 [statistics] connected [Error: unknown class or illegal statement: Sales] [Near : {... es fact0 = new Sales(); fact0. ....}]                      ^ [Line: 1, Column: 13]    at org.mvel2.compiler.AbstractParser.procTypedNode(AbstractParser.java:1278)    at org.mvel2.compiler.AbstractParser.nextToken(AbstractParser.java:712)    at org.mvel2.compiler.ExpressionCompiler._compile(ExpressionCompiler.java:106)    at org.mvel2.compiler.ExpressionCompiler.compile(ExpressionCompiler.java:55)    at org.drools.rule.builder.dialect.mvel.MVELExprAnalyzer.analyzeExpression(MVELExprAnalyzer.java:86)    at org.drools.rule.builder.dialect.mvel.MVELDialect.analyzeBlock(MVELDialect.java:492)    at org.drools.rule.builder.dialect.mvel.MVELConsequenceBuilder.build(MVELConsequenceBuilder.java:84)    at org.drools.rule.builder.RuleBuilder.build(RuleBuilder.java:86)    at org.drools.compiler.PackageBuilder.addRule(PackageBuilder.java:1159)    at org.drools.compiler.PackageBuilder.addPackage(PackageBuilder.java:649)    at org.drools.compiler.PackageBuilder.addPackageFromDrl(PackageBuilder.java:290)    at org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:488)    at org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:25)    at project1.droolsjob_0_1.DroolsJob$1KnowledgeBase_tRules_2.readKnowledgeBaseDRL(DroolsJob.java:595)    at project1.droolsjob_0_1.DroolsJob$1KnowledgeBase_tRules_2.readKnowledgeBase(DroolsJob.java:584)    at project1.droolsjob_0_1.DroolsJob.tFileInputExcel_2Process(DroolsJob.java:648)    at project1.droolsjob_0_1.DroolsJob.runJobInTOS(DroolsJob.java:1247)    at project1.droolsjob_0_1.DroolsJob.main(DroolsJob.java:1121) Unable to resolve ObjectType 'Sales' : [Rule name='SalesBR'] Unable to build expression for 'consequence': unknown class or illegal statement: Sales 'Sales fact0 = new Sales(); fact0.setName( "Discount" ); fact0.setSales( -10 ); insert(fact0 ); ' : [Rule name='SalesBR'] Error importing : 'salesmodel.Sales' Exception in component tRules_2 java.lang.IllegalArgumentException: Could not parse knowledge.    at project1.droolsjob_0_1.DroolsJob$1KnowledgeBase_tRules_2.readKnowledgeBaseDRL(DroolsJob.java:604)    at project1.droolsjob_0_1.DroolsJob$1KnowledgeBase_tRules_2.readKnowledgeBase(DroolsJob.java:584)    at project1.droolsjob_0_1.DroolsJob.tFileInputExcel_2Process(DroolsJob.java:648)    at project1.droolsjob_0_1.DroolsJob.runJobInTOS(DroolsJob.java:1247)    at project1.droolsjob_0_1.DroolsJob.main(DroolsJob.java:1121) [statistics] disconnected Job DroolsJob ended at 14:14 21/11/2011. [exit code=1] * I have attached the screen shots as follows: http://drools.46999.n3.nabble.com/file/n3603531/sales.jpg http://drools.46999.n3.nabble.com/file/n3603531/sales_error.jpg Please help me out on this issue. Thanks and Regards, Lavanya. -- View this message in context: http://drools.46999.n3.nabble.com/Regarding-implementation-of-bussiness-R... 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