<p>Hi All,</p>
<p> </p>
<p>I'm new to BIRT, I have just downloaded eclipse BIRT 4.4.2 on mars base.</p>
<p> </p>
<p>When I tried to add new data set and preview , im getting below error.</p>
<p>COuld please hlep</p>
<p> </p>
<div>org.eclipse.birt.report.engine.api.EngineException: Error happened while running the report.</div>
<div>at org.eclipse.birt.report.engine.api.impl.DatasetPreviewTask.doRun(DatasetPreviewTask.java:330)</div>
<div>at org.eclipse.birt.report.engine.api.impl.DatasetPreviewTask.runDataset(DatasetPreviewTask.java:280)</div>
<div>at org.eclipse.birt.report.engine.api.impl.DatasetPreviewTask.execute(DatasetPreviewTask.java:91)</div>
<div>at org.eclipse.birt.report.designer.data.ui.dataset.DataSetPreviewer.preview(DataSetPreviewer.java:68)</div>
<div>at org.eclipse.birt.report.designer.data.ui.dataset.ResultSetPreviewPage$5.run(ResultSetPreviewPage.java:366)</div>
<div>at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:119)</div>
<div>Caused by: java.lang.NoClassDefFoundError: org/mozilla/javascript/ScriptOrFnNode</div>
<div>at org.eclipse.birt.data.engine.impl.PreparedQuery.<init>(PreparedQuery.java:100)</div>
<div>at org.eclipse.birt.data.engine.impl.PreparedDataSourceQuery.<init>(PreparedDataSourceQuery.java:75)</div>
<div>at org.eclipse.birt.data.engine.impl.PreparedOdaDSQuery.<init>(PreparedOdaDSQuery.java:76)</div>
<div>at org.eclipse.birt.data.engine.impl.PreparedQueryUtil.newInstance(PreparedQueryUtil.java:211)</div>
<div>at org.eclipse.birt.data.engine.impl.DataEngineImpl.prepare(DataEngineImpl.java:426)</div>
<div>at org.eclipse.birt.report.data.adapter.impl.DataRequestSessionImpl.prepare(DataRequestSessionImpl.java:473)</div>
<div>at org.eclipse.birt.report.data.adapter.impl.DataRequestSessionImpl.prepare(DataRequestSessionImpl.java:483)</div>
<div>at org.eclipse.birt.report.engine.api.impl.DatasetPreviewTask.extractQuery(DatasetPreviewTask.java:348)</div>
<div>at org.eclipse.birt.report.engine.api.impl.DatasetPreviewTask.doRun(DatasetPreviewTask.java:309)</div>
<div>... 5 more</div>
<div>Caused by: java.lang.ClassNotFoundException: org.mozilla.javascript.ScriptOrFnNode cannot be found by org.eclipse.birt.data_4.4.2.v201501161327</div>
<div>at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:439)</div>
<div>at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:352)</div>
<div>at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:344)</div>
<div>at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:160)</div>
<div>at java.lang.ClassLoader.loadClass(ClassLoader.java:357)</div>
<div>... 14 more</div>
<div> </div>
