Learning Forum

[David_SY]

Hello,
I have an issue for Workbench with below:
Ansys: 2022R2 and 2022R1
Ubuntu: 20.04

I see many other people had the same issue. I followed the answer in Forum but it did not work.
The error is as below:

Unhandled exception caught :
System.DllNotFoundException: Ans.QT.dll assembly: type: member:(null)
at (wrapper managed-to-native) Ansys.UI.Toolkit.QTC.Application.ans_qt_Application_setPluginDirectory(intptr,string)
at Ansys.UI.Toolkit.QT.Application.SetPluginDirectory () [0x000d1] in :0
at Ansys.UI.Toolkit.QT.Application..ctor () [0x00006] in :0
at Ansys.UI.Toolkit.QT.UIFactory.newApplication () [0x00000] in :0
at Ansys.UI.Toolkit.UIFactory.newApplication () [0x0000c] in <3d00ca1c00134e6f8cbdeabb60d40546>:0
at Ansys.UI.Toolkit.Application.InstantiateIApplication () [0x00000] in <3d00ca1c00134e6f8cbdeabb60d40546>:0
at Ansys.UI.Toolkit.Application..cctor () [0x0000a] in <3d00ca1c00134e6f8cbdeabb60d40546>:0
--- System.TypeInitializationException: The type initializer for 'Ansys.UI.Toolkit.Application' threw an exception.
at Ansys.UI.UIManager..ctor () [0x00055] in :0
at Ansys.UI.UIManager.get_Instance () [0x00023] in :0
at Ans.Program.Runtime.InitializeSplashScreen () [0x00057] in <533ef4cf2ec54545830ecf48d3de026d>:0
at Ans.Program.Runtime.Initialize (Ans.Program.RuntimeSettings settings) [0x0021a] in <533ef4cf2ec54545830ecf48d3de026d>:0
at Ans.Program.ExecutableBase.Run (Ans.Program.CommandLineParse parser) [0x0000d] in :0
at Ans.Program.ExecutableBase.DoMain (System.String[] args) [0x000be] in :0

[Amine Ben Hadj Ali]

 

 

Ansys is not supported on all Ubuntu versions: Platform Support and Recommendations | Ansys

Can you please provide more details on the Ubuntu versions and the kernels installed?

 

 

[David_SY]

Hello,

Ubuntu: Ubuntu 20.04.4 LTS

Kernel: Linux 5.14.0-1049-oem

According to the Platform Support document, Workbench (I am trying to mesh) is supposed to be supported on Ubuntu LTS 20.04.

Thanks.

 

 

 

[George Karnos]

 

I believe this to be a problem with prerequisites…
Please check the Linux Installation Guide, Chapter 2. section 2.1. for Required Libraries.
There are tables that list the reuired library packages for Ubuntu (Last column)

Verify that they have all been installed.

Hope this helps!

 

[David_SY]

Hello,

I installed all prerequisite libraries in the list of Ansys Document, but it still does not work.

Any idea?

[Amine Ben Hadj Ali]

Are you able to launch Fluent or CFX outside the Workbench? Any error messages in the in the installaiton log file?

[David_SY]

I installed the following libraries and now the issue seems to have been resolved:

sudo apt install lsb

sudo apt install alien

 

Thank you for your time and help!

[Amine Ben Hadj Ali]

lsb is always mandatory and thanks for updating the thread! That is very useful!