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I had error when run Monitor Program


When I run monitor program, I had this error:

insandjaja@pop-os:~/intelFPGA_lite/18.1/University_Program/Monitor_Program/bin$ ./intel-fpga-monitor-program

Java HotSpot(TM) 64-Bit Server VM warning: You have loaded library /home/insandjaja/flexdock/ which might have disabled stack guard. The VM will try to fix the stack guard now.

It's highly recommended that you fix the library with 'execstack -c <libfile>', or link it with '-z noexecstack'. Connection refused

   at Method)

   at Source)

   at Source)

   at Source)

   at Source)

   at Source)

   at Source)

   at<init>(Unknown Source)

   at<init>(Unknown Source)

   at org.flexdock.docking.drag.outline.x11.Connection.<init>(

   at org.flexdock.docking.drag.outline.x11.Graphics.create(

   at org.flexdock.docking.drag.outline.x11.Graphics.<clinit>(

   at org.flexdock.docking.drag.outline.x11.X11RubberBand.<clinit>(

   at java.lang.Class.forName0(Native Method)

   at java.lang.Class.forName(Unknown Source)

   at org.flexdock.util.Utilities.createInstance(

   at org.flexdock.docking.drag.effects.EffectsManager.createRubberBand(

   at org.flexdock.docking.drag.effects.EffectsManager.loadSystemRubberband(


   at org.flexdock.docking.drag.effects.EffectsManager.<clinit>(


   at org.flexdock.docking.DockingManager.init(

   at org.flexdock.docking.DockingManager.<clinit>(

   at monitor.ui.UIManager.initDocking(

   at monitor.ui.UIManager.init(

   at monitor.globals.Globals.init(

   at monitor.Main.main(


How to fix this?

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