runtime error with spatstat package

[pioucyril]

Hello there,
We run into trouble with the r-extension when we try to make call to the ppp() function of the spatstat package. Example of procedures that does not work and work:

extensions[r]

to doesnotwork
  r:clear
  r:eval "library(spatstat)"
  r:eval "mypp = ppp(x=1:10,y=1:10)"
end

to workfine 
  crt 10 [setxy random-xcor random-ycor]
  r:clear
  r:setPlotDevice
  r:put "xs" [xcor] of turtles
  r:put "ys" [ycor] of turtles
  show r:get "ys"
  r:eval "plot(xs,ys)"
  r:eval "library(spatstat)"
end

Any idea to fix this?
Thanks for the hard work.

----- Error Message ----

Extension exception: Error in R-Extension: Error in Eval: 
org.rosuda.REngine.REngineEvalException: error during evaluation
error while observer running R:EVAL
  called by procedure DOESNOTWORK
  called by Command Center

org.nlogo.nvm.WrappedExtensionException: Extension exception: Error in R-Extension: Error in Eval: 
org.rosuda.REngine.REngineEvalException: error during evaluation
 at org.nlogo.prim._extern.perform(_extern.java:40)
 at org.nlogo.nvm.Context.stepConcurrent(Context.java:107)
 at org.nlogo.nvm.ConcurrentJob.step(ConcurrentJob.scala:65)
 at org.nlogo.job.JobThread.runPrimaryJobs(JobThread.scala:133)
 at org.nlogo.job.JobThread.$anonfun$run$1(JobThread.scala:68)
 at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:12)
 at scala.util.control.Exception$Catch.apply(Exception.scala:224)
 at org.nlogo.api.Exceptions$.handling(Exceptions.scala:41)
 at org.nlogo.job.JobThread.run(JobThread.scala:66)
Caused by: org.nlogo.api.ExtensionException: Error in R-Extension: Error in Eval: 
org.rosuda.REngine.REngineEvalException: error during evaluation
 at org.nlogo.extension.r.Entry$Eval.perform(Entry.java:698)
 at org.nlogo.prim._extern.perform(_extern.java:36)
 ... 8 more
Caused by: org.rosuda.REngine.REngineEvalException: error during evaluation
 at org.rosuda.REngine.JRI.JRIEngine.eval(JRIEngine.java:283)
 at org.rosuda.REngine.REngine.parseAndEval(REngine.java:102)
 at org.nlogo.extension.r.HoldRengineX.execute(HoldRengineX.java:86)
 at org.nlogo.extension.r.Entry$Eval.perform(Entry.java:695)
 ... 9 more

NetLogo 6.0.4
main: org.nlogo.app.AppFrame
thread: JobThread
Java HotSpot(TM) 64-Bit Server VM 1.8.0_172 (Oracle Corporation; 1.8.0_172-b11)
operating system: Linux 4.19.20-1-MANJARO (amd64 processor)
Scala version 2.12.4
JOGL: (3D View not initialized)
OpenGL Graphics: (3D View not initialized)
model: test

03:28:45.120 SwitchedTabsEvent (org.nlogo.app.Tabs) AWT-EventQueue-0
03:28:45.104 RuntimeErrorEvent (org.nlogo.app.App$$anon$1 (org.nlogo.window.GUIWorkspace)) AWT-EventQueue-0
03:28:41.909 PeriodicUpdateEvent (org.nlogo.app.App$$anon$1 (org.nlogo.window.GUIWorkspace)) AWT-EventQueue-0
03:28:41.900 AddJobEvent (org.nlogo.app.common.CommandLine) AWT-EventQueue-0
03:28:41.900 OutputEvent (org.nlogo.app.common.CommandLine) AWT-EventQueue-0
03:28:41.899 CompiledEvent (org.nlogo.window.CompilerManager) AWT-EventQueue-0
03:28:41.874 CompileMoreSourceEvent (org.nlogo.app.common.CommandLine) AWT-EventQueue-0
03:28:41.696 PeriodicUpdateEvent (org.nlogo.app.App$$anon$1 (org.nlogo.window.GUIWorkspace)) AWT-EventQueue-0
03:28:41.295 PeriodicUpdateEvent (org.nlogo.app.App$$anon$1 (org.nlogo.window.GUIWorkspace)) AWT-EventQueue-0
03:28:41.094 PeriodicUpdateEvent (org.nlogo.app.App$$anon$1 (org.nlogo.window.GUIWorkspace)) AWT-EventQueue-0