I'm having some issues about the installation of OpenSim-GUI, on Ubuntu 18.04.5. Following the instructions of https://github.com/opensim-org/opensim-gui and of https://github.com/opensim-org/opensim-gui/pull/1181, I have been able to install OpenSim-GUI with opensim-core built from source (thanks to the instructions of posting.php?mode=reply&f=91&t=7165&sid= ... 99f88c1df0).
I didn't encounter any major bugs in the opensim-core installation (all tests have been passed) or in the opensim-gui build. However, no visualization windows can be displayed when OpenSim-GUI is launched (with the command ./OpenSim in bin), as I could be seen here :
Also, no error is indicated as output. According to https://github.com/opensim-org/opensim-gui/pull/1181, this bug should be linked with an issue about jxbrowser. Normally, launching Opensim-GUI should lead to the creation of a /tmp/jxbrowser-chromium-[...] folder. In my case, this folder is not present.
However, I manage to make it appear by running the opensim-visualizer project (located in opensim-gui/opensim-visualizer) in Netbeans 8.2 IDE. Then the folder appears and indicates that jxbrowser is linked to all the necessary shared libraries.
Last strange point, I am able to visualize my models via simbody, using the opensim-cmd executable. Thus, by running the command :
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opensim-cmd viz -g ~/OpenSim-Gui-Install/Geometry model ~/Documents/OpenSim/4.2-2020-11-24-d9c8bb2c/Models/Gait2354_Simbody/subject01_simbody.osim
I get the following visualization:
Have other people already encountered this bug? Do you think it could be related to a bad installation or a missing execution of jxbrowser? Is it otherwise related to a bad execution of OpenSim (not through Ant or Netbeans for example, but directly through the OpenSim executable)?
Regards,
Erwann
EDIT : I finally found an exception that could perhaps explain this bug. During the execution of tutorial 3, in section IV (Inverse Kinematics), executing the "Run" function of the Inverse Kinematics tool produces the following error:
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java.lang.NullPointerException
at org.opensim.view.ExplorerTopComponent.addUndoableEdit(ExplorerTopComponent.java:541)
at org.opensim.view.pub.OpenSimDB.setCurrentModel(OpenSimDB.java:259)
at org.opensim.view.pub.OpenSimDB.setCurrentModel(OpenSimDB.java:241)
at org.opensim.view.pub.OpenSimDB.removeModel(OpenSimDB.java:188)
at org.opensim.view.actions.FileCloseAction.closeModel(FileCloseAction.java:76)
at org.opensim.view.nodes.ModelCloseSelectedAction.performAction(ModelCloseSelectedAction.java:53)
at org.openide.util.actions.CallableSystemAction$1.run(CallableSystemAction.java:130)
at org.openide.util.actions.ActionInvoker$1.run(ActionInvoker.java:95)
at org.openide.util.actions.ActionInvoker.doPerformAction(ActionInvoker.java:116)
at org.openide.util.actions.ActionInvoker.invokeAction(ActionInvoker.java:99)
at org.openide.util.actions.CallableSystemAction.actionPerformed(CallableSystemAction.java:127)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2348)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
at javax.swing.AbstractButton.doClick(AbstractButton.java:376)
at javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:842)
at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(BasicMenuItemUI.java:886)
at java.awt.Component.processMouseEvent(Component.java:6539)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3324)
at java.awt.Component.processEvent(Component.java:6304)
at java.awt.Container.processEvent(Container.java:2239)
at java.awt.Component.dispatchEventImpl(Component.java:4889)
at java.awt.Container.dispatchEventImpl(Container.java:2297)
at java.awt.Component.dispatchEvent(Component.java:4711)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4904)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4535)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4476)
at java.awt.Container.dispatchEventImpl(Container.java:2283)
at java.awt.Window.dispatchEventImpl(Window.java:2746)
at java.awt.Component.dispatchEvent(Component.java:4711)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:760)
at java.awt.EventQueue.access$500(EventQueue.java:97)
at java.awt.EventQueue$3.run(EventQueue.java:709)
at java.awt.EventQueue$3.run(EventQueue.java:703)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:74)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:84)
at java.awt.EventQueue$4.run(EventQueue.java:733)
at java.awt.EventQueue$4.run(EventQueue.java:731)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:74)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:730)
at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:159)
[catch] at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:205)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)
PS: I also allow myself to add a strange bug about the INSTALLER in opensim-gui/Gui/opensim/dist/installer/OpenSim. This one tries each time to install already installed packages ( openjdk-8-jre, liblapack3, libgconf). From what I understand, it seems to be related to an error in the command line called which returns nothing even though the packages are well installed.
The line in question are : ldconfig -p | grep -q <package name>. On the command line, we then have :
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ldconfig -p | grep -q "libgconf"
ldconfig -p | grep "libgconf"
libgconf-2.so.4 (libc6,x86-64) => /usr/lib/x86_64-linux-gnu/libgconf-2.so.4