[rules-users] Eclipse + drools = The Eclipse JDT Core jar is not in the classpath ??

[Salaboy]

That's a common eclipse error, if you cannot fix it you can always  
include the janino dependency.

- Ing. Mauricio Salatino -

On Mar 20, 2010, at 6:12, "Patrick Sannes" <patrick at i-dev.net> wrote:

> Hi,
>
> I tried to search a lot, but couldn't find a real solution to my  
> problem. I
> have the latest version of Eclipse installed and installed the  
> drools plugin
> 5.0.1 . I configured runtime (dropped it in c:\Users\Patrick 
> \Droolsruntime\)
> After starting a new drools project It created a Hello World example  
> (im
> new, so a nice start ;))
> When I tried to run the DroolsTest.Java I get the error at the end  
> of the
> email.
> Hope someone can help me out.
>
> Regards
> Patrick
>
> org.drools.RuntimeDroolsException: Unable to load dialect
> 'org.drools.rule.builder.dialect.java.JavaDialectConfiguration:java:org.droo
 

> ls.rule.builder.dialect.java.JavaDialectConfiguration'
>    at
> org.drools.compiler.PackageBuilderConfiguration.addDialect 
> (PackageBuilderCon
> figuration.java:274)
>    at
> org.drools.compiler.PackageBuilderConfiguration.buildDialectConfigurationMap
 

> (PackageBuilderConfiguration.java:259)
>    at
> org.drools.compiler.PackageBuilderConfiguration.init 
> (PackageBuilderConfigura
> tion.java:176)
>    at
> org.drools.compiler.PackageBuilderConfiguration.<init> 
> (PackageBuilderConfigu
> ration.java:153)
>    at
> org.drools.compiler.PackageBuilder.<init>(PackageBuilder.java:242)
>    at
> org.drools.compiler.PackageBuilder.<init>(PackageBuilder.java:142)
>    at
> org.drools.builder.impl.KnowledgeBuilderProviderImpl.newKnowledgeBuilder( 
> Kno
> wledgeBuilderProviderImpl.java:29)
>    at
> org.drools.builder.KnowledgeBuilderFactory.newKnowledgeBuilder 
> (KnowledgeBuil
> derFactory.java:29)
>    at com.sample.DroolsTest.readKnowledgeBase(DroolsTest.java:39)
>    at com.sample.DroolsTest.main(DroolsTest.java:23)
> Caused by: java.lang.RuntimeException: The Eclipse JDT Core jar is  
> not in
> the classpath
>    at
> org.drools.rule.builder.dialect.java.JavaDialectConfiguration.setCompiler( 
> Ja
> vaDialectConfiguration.java:94)
>    at
> org.drools.rule.builder.dialect.java.JavaDialectConfiguration.init 
> (JavaDiale
> ctConfiguration.java:55)
>    at
> org.drools.compiler.PackageBuilderConfiguration.addDialect 
> (PackageBuilderCon
> figuration.java:270)
>    ... 9 more
>
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