Ant- 'Java' target failed: can not find or load main-class

Asked Dec 02 '14 at 19:17

Active Dec 02 '14 at 19:17

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Given such Ant script, it runs the main class in SparkTest.

<target name="makeQuery" depends="makeJar">
    <java classname="sparkDemo.SparkTest" fork="true" failonerror="true">
        <classpath>
            <pathelement location="${basedir}/SparkDemo.jar"/>
        </classpath>
    </java>
</target>

I got such error:

makeQuery:
 [java] Error: Could not find or load main class sparkDemo.SparkTest

What's the issue? The SparkDemo.jar have dependency on several other jar files, then how to set the dependency in Java target?

asked Dec 02 '14 at 19:17

chrisTina

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the jar file is there, with the class in it? if it has dependency you ll get stack trace saying that the dependency is not found – Kalpesh Soni Dec 02 '14 at 19:25
But that error is the only error I got from the command line – chrisTina Dec 02 '14 at 19:38
see if this helps, http://stackoverflow.com/questions/18093928/what-does-could-not-find-or-load-main-class-mean , you need to give us more details – Kalpesh Soni Dec 02 '14 at 19:43

Ant- 'Java' target failed: can not find or load main-class

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