the key to the problem is this line in the error listing: "Caused by: java.lang.RuntimeException: The Eclipse JDT Core jar is not in the classpath"
This reference is to the library "core-3.4.2.v_883_R34x.jar" which is installed by the Eclipse Drools plugin If you add core-3.4.2.v_883_R34x.jar to your libraries then you won't get the runtime exception. On Tue, Mar 26, 2013 at 12:59 PM, Peach Wyss <peach_w...@yahoo.com> wrote: > Hy > > I get the following error: > ... > Caused by: org.drools.RuntimeDroolsException: Unable to load dialect > 'org.drools.rule.builder.dialect.mvel.MVELDialectConfiguration:mvel:org.drools.rule.builder.dialect.mvel.MVELDialectConfiguration' > at > org.drools.compiler.PackageBuilderConfiguration.addDialect(PackageBuilderConfiguration.java:313) > ... > ... 42 more > Caused by: java.lang.ClassCastException: > org.drools.rule.builder.dialect.mvel.MVELDialectConfiguration cannot be > cast to org.drools.compiler.DialectConfiguration > at > org.drools.compiler.PackageBuilderConfiguration.addDialect(PackageBuilderConfiguration.java:308) > ... 51 more > > I'm using drools in a maven project, pom.xml: > ... > <dependency> > <groupId>org.drools</groupId> > <artifactId>drools-compiler</artifactId> > <version>5.5.0.Final</version> > </dependency> > <dependency> > <groupId>org.drools</groupId> > <artifactId>drools-core</artifactId> > <version>5.5.0.Final</version> > </dependency> > ... > > What could cause this error? > > Thanks for your help. > > Kind regards, > Peter > > _______________________________________________ > rules-users mailing list > rules-users@lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users >
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