java.lang.ClassNotFoundException: wicket153mount///

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,
Expert tip

This might be an issue with the file location in the Spark submit command. Try it with

spark-submit --master spark://master:7077 \
     hello_world_from_pyspark.py {file location}

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Check if you've set a name in Application -> Run. If you didn't, the generated XML is gonna have missing information and then this exception will be thrown.

Solutions on the web

java.lang.ClassNotFoundException: wicket153mount///
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:242)
at org.apache.wicket.request.mapper.AbstractComponentMapper.getPageClass(AbstractComponentMapper.java:138)
at org.apache.wicket.request.mapper.PackageMapper.parseRequest(PackageMapper.java:142)
at org.apache.wicket.request.mapper.AbstractBookmarkableMapper.mapRequest(AbstractBookmarkableMapper.java:263)
at org.apache.wicket.request.mapper.mount.UnmountedMapperAdapter.mapRequest(UnmountedMapperAdapter.java:73)
at org.apache.wicket.request.mapper.mount.MountMapper.mapRequest(MountMapper.java:131)
at org.apache.wicket.request.cycle.RequestCycle.resolveRequestHandler(RequestCycle.java:181)
at org.apache.wicket.request.cycle.RequestCycle.processRequest(RequestCycle.java:206)
at org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:280)
at org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:162)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
at java.lang.Thread.run(Thread.java:595)

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