[NickyNac]

Hello,

I'm trying to run Fluent on my computer. I have installed a valid academic version of ansys 14.5.7 downloaded from their internet site, i have a valid license from a server machine but I have a problem to launch Fluent from workbench. I can use Design Modeler and make the mesh but when I click on the setup button to launch Fluent, it crashes and I get the following message:

Ansys.Fluent.Cortex.CortexUserReadableException: The FLUENT application failed to start.
à Ansys.Fluent.Cortex.CortexCommunicator.StartClient (Boolean batchMode, LauncherEditMode editMode, Boolean justRun, Boolean pendingMode, String workingDirectory, List`1 args, List`1 clientArgs, Dictionary`2 environmentVariables)
à Ansys.Fluent.FluentCommunicator.StartFluent(String settingsFileName, String workDir, Boolean batchMode, Boolean pendingMode, Dictionary`2 environmentVariables)
à Ansys.Fluent.Data.SetupData.LaunchFluent(IFullCont ext context, Boolean batchMode, DataContainerReference fromContainer, Boolean startedInternally, Boolean pendingMode, Boolean mesherMode, Boolean IsUadpViaRsm, Boolean IsSetupUpdate)
à Ansys.Fluent.Data.SetupData.LaunchFluentAndRead(IF ullContext context, Boolean batchMode, Boolean loadSolution, DataContainerReference fromContainer, Boolean internallyStarted, Boolean reuseSession, Boolean pendingMode, Boolean isRsmUpdate)
à Ansys.Fluent.Commands.EditCommand.Execute(IFullCon text context)
à Ansys.Core.Commands.Concurrency.CommandWorkUnit.ex ecuteInContext(CommandContext subContext, IExecutionEngineCallback tracer)
à Ansys.Core.Commands.Concurrency.BaseWorkUnit.doExe cute(IExecutionEngineCallback executionEngine, CommandContext subContext)
à Ansys.Core.Commands.Concurrency.BaseWorkUnit.Execu te(IExecutionEngineCallback executionEngine, Boolean dontCatchExceptions)
--- Ansys.Core.Commands.CommandFailedException: The FLUENT application failed to start.
CommandName: Fluent.Edit(Container="Setup")
à Ansys.Core.Commands.CommandAsyncResult.Wait(Int32 milliSecondsTimeout, Boolean exitContext)
à Ansys.Core.Commands.CommandAsyncResult.Wait()
à Ansys.Fluent.Commands.EditCommand.InvokeAndWait(IP rotectedContext context, DataContainerReference Container, Boolean Interactive)
à Ansys.Fluent.Gui.GuiUtilities.GetLauncherSettingsA ndEdit(GuiOperationContext operationContext, DataContainerReference cref, LauncherEditMode editMode)
à Ansys.Fluent.Gui.OpenInFluentGui.Invoke(GuiOperati onContext context)
à Ansys.UI.UIManager.<>c__DisplayClassb.<InvokeOpera tion>b__a()
à Ansys.UI.UIManager.InvokeOperationCore(String pseudoname, OperationDelegate callback, Boolean allowOSMessages, Boolean coreTransaction)

However, when I launch Fluent alone from the start menu, it works perfectly.

Besides, the program CFD-Post does not launch (either from workbench or from start menu) and I get the following message:

The application has encountered an unexpected problem and will now terminate: Aborting due to unexpected error:
comm::error: AppWindow::initialize - Error waiting for viewer connection from engine:
Please report this error, along with the circumstances in which it occurred.
The following information may be useful to CFX support:
Unexpected error: Aborting due to unexpected error:
comm::error: AppWindow::initialize - Error waiting for viewer connection from engine:

I have downloaded the Ansys files twice from their internet site and I also have uninstalled and reinstalled Ansys twice. I still get the same problem.

Could someone help me please?

Thank you

[mich_K]

Hi NickyNac.

I get the same error with CFD Post. Have you resolved the problem?

[NickyNac]

Hi Mich_k,

I am sorry but I did not find any solution. I suspected the firewall or the antivirus or an outdated driver but nothing worked. The customer portal could not help either. I had to use another computer.

[Yoonyeong]

i had this problem too..but now
i solve this problem to update java and window.
i don't know why this problem disappear...
but if you have this problem until now, i recommend update.

[villager]

Originally Posted by Yoonyeong

i had this problem too..but now
i solve this problem to update java and window.
i don't know why this problem disappear...
but if you have this problem until now, i recommend update.

Finally, solved this problem, thx Yoonyeong for providing an advice.
On Windows7 you should update the system via Update Center.
I didn't perform updates since 2012, and it have resulted in 197 updates installed just now. Now, the connection to FLUENT from WB works!
(works, at least for ANSYS Student v 16.2 )

[whamilton121993]

having this exact same problem with windows 10, everything is up to date, can't start fluent at all, any help would be appreciated!

[Elgadari]

hi, I am also facing the same problem on windows 10. did you fix the problem yet?

[whamilton121993]

From memory I dont think I did, i had to just use a different computer

[osamaajaz]

License error