Learning Forum

[LukeM]

Hello,

I have been working with Fluent for a few months, but I suddenly had an issue opening the Ansys Mesher. When I open Ansys Mesher through the Workbench, an error appears. The error reads, "Error waiting for Meshing initialization to complete. Object reference not set to an instance of an object." The details under the error are shown below. The Workbench also produces a popup saying "AnsysWBU.exe encountered a problem. A diagnostic file has been written: .../Temp/AnsysWBDumpFile.dmp". 

One strange aspect about this error is that Ansys Meshing is the only program experiencing problems. I can still open Fluent and SpaceClaim. Additionally, Fluent Meshing still works fine. 

I should also mention that I have tried opening a new Workbench file, trying a different CAD file (which has definitely worked historically), checking drivers for my video card, and following the suggestions here. 

Any suggestions? 

 

 

System.InvalidOperationException: Error while waiting for Meshing initialization to complete. Object reference not set to an instance of an object.

   at Ansys.Addins.Infrastructure.Remoting.RemotingApiHelper.FatalApiMethodInvalidOperationException(String message, RemotingApiMethod callback)

   at Ansys.Meshing.Core.Commands.MeshingProcessStarter.SetupSimulationProcessConnection(ServerToClientConnection addinToApplicationConnection, Boolean connectEvents)

   at Ansys.Meshing.Core.ExternalProcessHandlers.StartSimulation(IFullContext context, Boolean bInBatch, DataContainerReference modelContainer, DataReference connectionRef, Boolean checkRequiredLicenseCapabilities)

   at Ansys.Meshing.Core.ExternalProcessHandlers.StartAndInitializeSimulation(IFullContext context, DataContainerReference modelContainer, Boolean bIsBatchMode, Boolean bRequireLicense)

   at Ansys.Meshing.Core.Commands.EditModel.ExecuteCommand(IFullContext context)

   at Ansys.Addins.Infrastructure.CommandUtilities.CommandHelper.Execute(IFullContext context)

   at Ansys.Core.Commands.Concurrency.CommandWorkUnit.executeInContext(CommandContext subContext, IExecutionEngineCallback tracer)

   at Ansys.Core.Commands.Concurrency.BaseWorkUnit.doExecute(IExecutionEngineCallback executionEngine, CommandContext subContext)

   at Ansys.Core.Commands.Concurrency.BaseWorkUnit.Execute(IExecutionEngineCallback executionEngine, Boolean dontCatchExceptions)

--- Ansys.Core.Commands.CommandFailedException: Error while waiting for Meshing initialization to complete. Object reference not set to an instance of an object.

CommandName: Meshing.EditModel(Container="Mesh")

   at Ansys.Core.Commands.CommandAsyncResult.RethrowFailureException(Exception e)

   at Ansys.Core.Commands.CommandAsyncResult.Wait(Int32 milliSecondsTimeout, Boolean exitContext)

   at Ansys.Meshing.Core.Commands.EditModel.InvokeAndWait(IProtectedContext context, DataContainerReference Container, Boolean Interactive)

   at Ansys.Meshing.GUI.EditModel.Invoke(GuiOperationContext context)

   at Ansys.UI.GuiOperationContext.Invoke(GuiOperationMetaData operationData)

   at Ansys.UI.UIManager.InvokeOperationCore(String pseudoname, OperationDelegate callback, Boolean allowOSMessages, Boolean coreTransaction, Boolean deferredRefreshOnly)

 

[tsiriaks]

If you open Design Modeler or Mechanical GUI, do you also get an issue ?

What is your graphics card ?

Do you have any .err file under ANSYS Inc folder ?

Go to (default) C:Program FilesANSYS Incv1##prereq  , then manually install each of these one-by-one except those MPI and opencl related

 

[LukeM]

1) After checking, I am also unable to open Design Modeler. For the Mechanical GUI, I'm uncertain which program you mean. Mechanical APDL? I can open that application fine. Mechanical Modeler? I can't open that program. 

2) I have an NVIDIA Quadro 4000.

3) I do not currently have any .errr files under C:Program FilesANSYS Inc. 

4) That worked! Thanks for the help! 

[zahraa]

hello could you please help me how to solve my problem here in mechanical? 

 

DISTRIBUTED ANSYS RUN COMPLETED                     |
 |                                                                           |
 |---------------------------------------------------------------------------|
 |                                                                           |
 | Ansys Release 18.2          Build 18.2         UP20170726     WINDOWS x64 |
 |                                                                           |
 |---------------------------------------------------------------------------|
 |                                                                           |
 | Database Requested(-db)  1024 MB    Scratch Memory Requested      1024 MB |
 | Maximum Database Used       5 MB    Maximum Scratch Memory Used     17 MB |
 |                                                                           |
 |---------------------------------------------------------------------------|
 |                                                                           |
 |        CP Time      (sec) =          1.375       Time  =  22:24:28        |
 |        Elapsed Time (sec) =          5.000       Date  =  10/25/2019      |
 |                                                                          

[LukeM]

This doesn't look like a problem with opening Ansys Mesher. I recommend you start a new thread and post this problem. You'll probably get more help that way. 

[zahraa]

Thank you for responding the solution> solve doesn't work at all and the and through geometry I can't watch equivalent stress and other part of this section(solution) .what do you mean about start new threat I start and close and start many time!! and see this error below  again what should I do now?many many thanks 

 

An unknown error occurred during solution.  Check the Solver Output on the Solution Information object for possible causes. Project>Model>Static Structural>Solution Friday, October 25, 2019 11:09:14 PM

The license manager is delayed in its response. The latest requests were answered after 9 seconds. C:UsersNPDesktopstructural2_filesdp0globalMECHSYS.mechdb Friday, October 25, 2019 9:251 PM

[LukeM]

I mean open a new thread on this website. Your problem doesn't seem to be related to my original post. If you make a new post under a new thread, you'll probably receive help faster. Try this: https://studentcommunity.ansys.com/topic/create/

 

Sorry I couldn't be more help. 

[tsiriaks]

Hi LukeM,

That's great news ! Thanks for the update.

Also, thank you for directing zahraa to create a new thread. That's indeed the best for all parties.

Thanks,

Win

[benoit.marinus]

Hello,
I have similar errors when trying to launch Ansys Mechanical on HP BL460c blades with TigerVNC grapchics. With a 2020R2 version or a fresh 2021R1, I have the same behavior.
/share/apps/ansys/2021R1FluidStructures/v211/Framework/bin/Linux64/runwb2 -oglmesa


My module file is:
#%Module 1.0
#
# Ansys module for use with 'environment-modules' package:
#
prepend-path           PATH                   /share/apps/ansys/2021R1FluidStructures/v211/ansys/bin
prepend-path           PATH                   /share/apps/ansys/2021R1FluidStructures/v211/Framework/bin/Linux64
prepend-path           PATH                   /share/apps/ansys/2021R1FluidStructuresbin/v211/Framework/bin/Linux64/Mesa
prepend-path           PATH                   /share/apps/ansys_inc/shared_files/licensing/lic_admin
setenv                 LIBGL_ALWAYS_INDIRECT  1
setenv                 LIBGL_ALWAYS_SOFTWARE  1
setenv                 ANSYSLMD_LICENSE_FILE  1055@10.67.71.101
setenv                 ANSYSLIC_SYSDIR        linx64
setenv                 ANSYS211_DIR           /share/apps/ansys/2021R1FluidStructures/v211/ansys
setenv                 ANSYSLIC_DIR           /share/apps/ansys_inc/shared_files/licensing


The Workbench log reads:
Product version: 2020 R2
Build version: 20.2.0.2020052616
{3/19/2021 1:53:48 PM} [ProjectReplaced:Project] A new project has been created.
{3/19/2021 1:55:21 PM} [ProjectReplaced:Project] The project has been opened from /home/bmarinus/test.wbpj.
{3/19/2021 1:57:08 PM} [ProjectSaved:Project] The current project has been saved: /home/bmarinus/test.wbpj.
{3/19/2021 2:02:22 PM} [Ansys.Core.Commands.CommandFailedException:Message] Unable to start the Mechanical editor.
Ansys.Core.Commands.UserReadableFailureException: Unable to start the Mechanical editor.
 at Ansys.Addins.Infrastructure.CommandUtilities.CommandHelper.Execute (Ansys.Core.Commands.IFullContext context) [0x00051] in :0
 at Ansys.Core.Commands.Concurrency.CommandWorkUnit.executeInContext (Ansys.Core.Commands.CommandContext subContext, Ansys.Core.Commands.Concurrency.IExecutionEngineCallback tracer) [0x00075] in :0
--- Ansys.Core.Commands.CommandFailedException: Unable to start the Mechanical editor.
CommandName: Mechanical.EditSetup(Container="Setup", StartAsReadOnly=True)
 at Ansys.Core.Commands.CommandAsyncResult.RethrowFailureException (System.Exception e) [0x0000c] in :0
 at Ansys.Core.Commands.CommandAsyncResult.Wait (System.Int32 milliSecondsTimeout, System.Boolean exitContext) [0x000ae] in :0
 at Ansys.Core.Commands.CommandAsyncResult.Wait () [0x00000] in :0
 at Ansys.Simulation.Core.Commands.EditSetup.InvokeAndWait (Ansys.Core.Commands.IProtectedContext context, Ansys.Core.DataModel.ProjectSystem.DataContainerReference Container, System.Boolean Interactive, System.Boolean Hidden, System.Boolean StartAsReadOnly) [0x0003c] in :0
 at Ansys.Simulation.GUI.EditSetupInReadOnlyMode.InvokeCommand (Ansys.UI.GuiOperationContext context, Ansys.Core.DataModel.ProjectSystem.DataContainerReference containerReference) [0x00006] in :0
 at Ansys.Simulation.GUI.EditSetupBase.EditSetupOperation (Ansys.UI.GuiOperationContext context, Ansys.Core.DataModel.ProjectSystem.DataContainerReference setupContainer, Ansys.UI.Interfaces.IGuiOperation operation) [0x0024a] in :0
 at Ansys.Simulation.GUI.EditSetupBase.Invoke (Ansys.UI.GuiOperationContext context) [0x00015] in :0
 at Ansys.UI.GuiOperationContext.Invoke (Ansys.UI.GuiOperationMetaData operationData) [0x00007] in :0
 at Ansys.UI.UIManager+c__AnonStorey0.m__0 () [0x00037] in :0
 at Ansys.UI.UIManager.InvokeOperationCore (System.String pseudoname, Ansys.UI.Views.View+OperationDelegate callback, System.Boolean allowOSMessages, System.Boolean coreTransaction, System.Boolean deferredRefreshOnly) [0x001ea] in :0

[benoit.marinus]

Hello,
I have similar errors when trying to launch Ansys Mechanical on HP BL460c blades with TigerVNC grapchics. With a 2020R2 version or a fresh 2021R1, I have the same behavior.
My module file is:
#%Module 1.0
#
# Ansys module for use with 'environment-modules' package:
#
prepend-path           PATH                   /share/apps/ansys/2021R1FluidStructures/v211/ansys/bin
prepend-path           PATH                   /share/apps/ansys/2021R1FluidStructures/v211/Framework/bin/Linux64
prepend-path           PATH                   /share/apps/ansys/2021R1FluidStructuresbin/v211/Framework/bin/Linux64/Mesa
prepend-path           PATH                   /share/apps/ansys_inc/shared_files/licensing/lic_admin
setenv                 LIBGL_ALWAYS_INDIRECT  1
setenv                 LIBGL_ALWAYS_SOFTWARE  1
setenv                 ANSYSLMD_LICENSE_FILE  1055@10.67.71.101
setenv                 ANSYSLIC_SYSDIR        linx64
setenv                 ANSYS211_DIR           /share/apps/ansys/2021R1FluidStructures/v211/ansys
setenv                 ANSYSLIC_DIR           /share/apps/ansys_inc/shared_files/licensing



The Workbench log reads:
Product version: 2020 R2
Build version: 20.2.0.2020052616

{3/19/2021 1:53:48 PM} [ProjectReplaced:Project] A new project has been created.

{3/19/2021 1:55:21 PM} [ProjectReplaced:Project] The project has been opened from /home/bmarinus/test.wbpj.

{3/19/2021 1:57:08 PM} [ProjectSaved:Project] The current project has been saved: /home/bmarinus/test.wbpj.

{3/19/2021 2:02:22 PM} [Ansys.Core.Commands.CommandFailedException:Message] Unable to start the Mechanical editor.
Ansys.Core.Commands.UserReadableFailureException: Unable to start the Mechanical editor.
 at Ansys.Addins.Infrastructure.CommandUtilities.CommandHelper.Execute (Ansys.Core.Commands.IFullContext context) [0x00051] in :0
 at Ansys.Core.Commands.Concurrency.CommandWorkUnit.executeInContext (Ansys.Core.Commands.CommandContext subContext, Ansys.Core.Commands.Concurrency.IExecutionEngineCallback tracer) [0x00075] in :0
--- Ansys.Core.Commands.CommandFailedException: Unable to start the Mechanical editor.
CommandName: Mechanical.EditSetup(Container="Setup", StartAsReadOnly=True)
 at Ansys.Core.Commands.CommandAsyncResult.RethrowFailureException (System.Exception e) [0x0000c] in :0
 at Ansys.Core.Commands.CommandAsyncResult.Wait (System.Int32 milliSecondsTimeout, System.Boolean exitContext) [0x000ae] in :0
 at Ansys.Core.Commands.CommandAsyncResult.Wait () [0x00000] in :0
 at Ansys.Simulation.Core.Commands.EditSetup.InvokeAndWait (Ansys.Core.Commands.IProtectedContext context, Ansys.Core.DataModel.ProjectSystem.DataContainerReference Container, System.Boolean Interactive, System.Boolean Hidden, System.Boolean StartAsReadOnly) [0x0003c] in :0
 at Ansys.Simulation.GUI.EditSetupInReadOnlyMode.InvokeCommand (Ansys.UI.GuiOperationContext context, Ansys.Core.DataModel.ProjectSystem.DataContainerReference containerReference) [0x00006] in :0
 at Ansys.Simulation.GUI.EditSetupBase.EditSetupOperation (Ansys.UI.GuiOperationContext context, Ansys.Core.DataModel.ProjectSystem.DataContainerReference setupContainer, Ansys.UI.Interfaces.IGuiOperation operation) [0x0024a] in :0
 at Ansys.Simulation.GUI.EditSetupBase.Invoke (Ansys.UI.GuiOperationContext context) [0x00015] in :0
 at Ansys.UI.GuiOperationContext.Invoke (Ansys.UI.GuiOperationMetaData operationData) [0x00007] in :0
 at Ansys.UI.UIManager+c__AnonStorey0.m__0 () [0x00037] in :0
 at Ansys.UI.UIManager.InvokeOperationCore (System.String pseudoname, Ansys.UI.Views.View+OperationDelegate callback, System.Boolean allowOSMessages, System.Boolean coreTransaction, System.Boolean deferredRefreshOnly) [0x001ea] in :0

[zouaoui]

.

I have the same problem with opening mesh with workbench flow fluent and all the previous solutions didn't work for me.

So any other solutions please

.