sessionId should not be null; has this session b een started yet?

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  • Stack trace

    • java.lang.NullPointerException: sessionId should not be null; has this session b een started yet? at org.openqa.selenium.server.FrameGroupCommandQueueSet.getQueueSet( at org.openqa.selenium.server.commands.SeleniumCoreCommand.execute( at org.openqa.selenium.server.SeleniumDriverResourceHandler.doCommand( at org.openqa.selenium.server.SeleniumDriverResourceHandler.handleCommandRequest( at org.openqa.selenium.server.SeleniumDriverResourceHandler.handle( at org.mortbay.http.HttpContext.handle( at org.mortbay.http.HttpContext.handle( at org.mortbay.http.HttpServer.service( at org.mortbay.http.HttpConnection.service( at org.mortbay.http.HttpConnection.handleNext( at org.mortbay.http.HttpConnection.handle( at org.mortbay.http.SocketListener.handleConnection( at org.mortbay.util.ThreadedServer.handle( at org.mortbay.util.ThreadPool$

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