[ https://issues.jboss.org/browse/DROOLS-373?page=com.atlassian.jira.plugin... ] Jinghai Rao commented on DROOLS-373: ------------------------------------ I have a problem with Drools Eclipse plugin which may relate to this bug. I imported the attached project to eclipse as a Maven Project, and then converted it to a Drools project. Then I got an error at the third line of package.drl: "global org.apache.commons.lang3.tuple.ImmutablePair ip;". The error message is "Unable to find class 'org.apache.commons.lang3.tuple.ImmutablePair'". I have un-commented the dependency part in pom.xml, but it didn't change anything. Actually I have this problem for all external classes, so I have to disable drools nature. Despite the error message, I can run the project inside eclipse without any problem. I think you guys are using eclipse too. Do you have the same problem? Below is my environment: * OS: Mac OS X 10.9.2 * Eclipse Kepler * Drool Eclipse Plugin - JBoss Drools Core 6.0.1Final. (I don't have problem with Drools Core 5.6.0Final) * Java SE 1.7 * Drools Runtime 6.0.1 Thanks. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira