<div dir="ltr"><p style="margin:0px 0px 1em;padding:0px;border:0px;font-size:14px;vertical-align:baseline;clear:both;word-wrap:break-word;color:rgb(0,0,0);font-family:Arial,'Liberation Sans','DejaVu Sans',sans-serif;line-height:18px">
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"</p><p style="margin:0px 0px 1em;padding:0px;border:0px;font-size:14px;vertical-align:baseline;clear:both;word-wrap:break-word;color:rgb(0,0,0);font-family:Arial,'Liberation Sans','DejaVu Sans',sans-serif;line-height:18px">
This reference is to the library "core-3.4.2.v_883_R34x.jar" which is installed by the Eclipse Drools plugin</p><p style="margin:0px 0px 1em;padding:0px;border:0px;font-size:14px;vertical-align:baseline;clear:both;word-wrap:break-word;color:rgb(0,0,0);font-family:Arial,'Liberation Sans','DejaVu Sans',sans-serif;line-height:18px">
If you add core-3.4.2.v_883_R34x.jar to your libraries then you won't get the runtime exception.</p></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Tue, Mar 26, 2013 at 12:59 PM, Peach Wyss <span dir="ltr"><<a href="mailto:peach_wyss@yahoo.com" target="_blank">peach_wyss@yahoo.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div style="font-size:10pt;font-family:verdana,helvetica,sans-serif"><div>Hy</div><div><br></div><div style="font-style:normal;font-size:13.3333px;background-color:transparent;font-family:verdana,helvetica,sans-serif">
I get the following error:</div><div style="font-style:normal;font-size:13.3333px;background-color:transparent;font-family:verdana,helvetica,sans-serif">...</div><div style="font-style:normal;font-size:13.3333px;background-color:transparent;font-family:verdana,helvetica,sans-serif">
Caused by: org.drools.RuntimeDroolsException: Unable to load dialect 'org.drools.rule.builder.dialect.mvel.MVELDialectConfiguration:mvel:org.drools.rule.builder.dialect.mvel.MVELDialectConfiguration'<br> at
org.drools.compiler.PackageBuilderConfiguration.addDialect(PackageBuilderConfiguration.java:313)<br><span> </span><span> ...</span><br> ... 42 more<br> Caused by: java.lang.ClassCastException: org.drools.rule.builder.dialect.mvel.MVELDialectConfiguration cannot be cast to org.drools.compiler.DialectConfiguration<br>
at org.drools.compiler.PackageBuilderConfiguration.addDialect(PackageBuilderConfiguration.java:308)<br> ... 51 more</div><div style="font-style:normal;font-size:13.3333px;background-color:transparent;font-family:verdana,helvetica,sans-serif">
<br></div><div style="font-style:normal;font-size:13.3333px;background-color:transparent;font-family:verdana,helvetica,sans-serif">I'm using drools in a maven
project, pom.xml:</div><div style="font-style:normal;font-size:13.3333px;background-color:transparent;font-family:verdana,helvetica,sans-serif">...</div><div style="font-style:normal;font-size:13.3333px;background-color:transparent;font-family:verdana,helvetica,sans-serif">
<dependency><br> <groupId>org.drools</groupId><br> <artifactId>drools-compiler</artifactId><br> <version>5.5.0.Final</version><br> </dependency><br>
<dependency><br> <groupId>org.drools</groupId><br> <artifactId>drools-core</artifactId><br>
<version>5.5.0.Final</version><br> </dependency></div><div style="font-style:normal;font-size:13.3333px;background-color:transparent;font-family:verdana,helvetica,sans-serif">...</div><div style="font-style:normal;font-size:13.3333px;background-color:transparent;font-family:verdana,helvetica,sans-serif">
<br></div><div style="font-style:normal;font-size:13.3333px;background-color:transparent;font-family:verdana,helvetica,sans-serif">What could cause this error?</div><div style="font-style:normal;font-size:13.3333px;background-color:transparent;font-family:verdana,helvetica,sans-serif">
<br></div><div style="font-style:normal;font-size:13.3333px;background-color:transparent;font-family:verdana,helvetica,sans-serif">Thanks for your help.</div><div style="font-style:normal;font-size:13.3333px;background-color:transparent;font-family:verdana,helvetica,sans-serif">
<br></div><div style="font-style:normal;font-size:13.3333px;background-color:transparent;font-family:verdana,helvetica,sans-serif">Kind regards,</div><div style="font-style:normal;font-size:13.3333px;background-color:transparent;font-family:verdana,helvetica,sans-serif">
Peter</div></div></div><br>_______________________________________________<br>
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