Failed to initialize edge debugger

Hi,

I am new to CloverETL. I am using Version: 3.3.0.063M1.

I am trying to fetch data from 2 database tables and put data into new table.

When I try view data, I get - "Failed to initialize edge debugger: Temp file does not exist." error.

I see following error when I run the graph.

INFO [main] - Graph definition file: graph/firstgraph.grf
ERROR [main] - Can't create object of : CLOVER_WRITER exception: java.lang.NullPointerException
CLOVER_WRITER:CLOVER_WRITER0:Attribute/property not found: fileURL
Exception in thread "main" java.lang.RuntimeException: Can't create object of : CLOVER_WRITER exception: java.lang.NullPointerException
at org.jetel.component.ComponentFactory.createComponent(ComponentFactory.java:157)
at org.jetel.graph.TransformationGraphXMLReaderWriter.instantiateNodes(TransformationGraphXMLReaderWriter.java:498)
at org.jetel.graph.TransformationGraphXMLReaderWriter.instantiatePhases(TransformationGraphXMLReaderWriter.java:461)
at org.jetel.graph.TransformationGraphXMLReaderWriter.read(TransformationGraphXMLReaderWriter.java:376)
at org.jetel.graph.TransformationGraphXMLReaderWriter.read(TransformationGraphXMLReaderWriter.java:296)
at org.jetel.graph.TransformationGraphXMLReaderWriter.loadGraph(TransformationGraphXMLReaderWriter.java:225)
at org.jetel.main.runGraph.main(runGraph.java:325)

Can you please help me out.

Thanks
Naresh