[Error] Multiple servlets map to path:

[kemathur]

I have been trying to run the GUI following https://macrobase.stanford.edu/docs/gui/tutorial/

I get stuck at running bin/frontend.sh
The error I was getting was the port was in use so I edited it using:

server:
    applicationConnectors:
        - type: http
          port: 6000
    adminConnectors:
        - type: http
          port: 6001

Then I get the following error running it:

INFO  [2019-03-19 17:16:31,552] org.eclipse.jetty.server.ServerConnector: Stopped application@1d8062d2{HTTP/1.1}{0.0.0.0:6000}
INFO  [2019-03-19 17:16:31,553] org.eclipse.jetty.server.ServerConnector: Stopped admin@1e63ec0b{HTTP/1.1}{0.0.0.0:6001}
Exception in thread "main" java.lang.IllegalStateException: Multiple servlets map to path: /*: io.dropwizard.jersey.setup.JerseyServletContainer-ea9b7c6,assets
	at org.eclipse.jetty.servlet.ServletHandler.updateMappings(ServletHandler.java:1488)
	at org.eclipse.jetty.servlet.ServletHandler.doStart(ServletHandler.java:160)
	at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
	at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:132)
	at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:114)
	at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:61)
	at org.eclipse.jetty.server.handler.ScopedHandler.doStart(ScopedHandler.java:120)
	at org.eclipse.jetty.server.handler.ContextHandler.startContext(ContextHandler.java:784)
	at org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:294)
	at org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:741)
	at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
	at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:132)
	at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:114)
	at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:61)
	at com.codahale.metrics.jetty9.InstrumentedHandler.doStart(InstrumentedHandler.java:103)
	at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
	at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:132)
	at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:114)
	at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:61)
	at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
	at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:132)
	at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:114)
	at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:61)
	at org.eclipse.jetty.server.handler.RequestLogHandler.doStart(RequestLogHandler.java:140)
	at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
	at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:132)
	at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:114)
	at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:61)
	at org.eclipse.jetty.server.handler.StatisticsHandler.doStart(StatisticsHandler.java:232)
	at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
	at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:132)
	at org.eclipse.jetty.server.Server.start(Server.java:387)
	at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:114)
	at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:61)
	at org.eclipse.jetty.server.Server.doStart(Server.java:354)
	at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
	at io.dropwizard.cli.ServerCommand.run(ServerCommand.java:43)
	at io.dropwizard.cli.EnvironmentCommand.run(EnvironmentCommand.java:41)
	at io.dropwizard.cli.ConfiguredCommand.run(ConfiguredCommand.java:77)
	at io.dropwizard.cli.Cli.run(Cli.java:70)
	at io.dropwizard.Application.run(Application.java:80)
	at macrobase.runtime.MacroBaseServer.main(MacroBaseServer.java:22)