FLUENT application Failed to start

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mmorg41 posted this 28 October 2017

I have been working on a CFD analysis on FLUENT and it has been working fine but all of the sudden fluent stopped working. I have tried it several times and still nothing. Any help with this issue would be greatly appreciated as I have a project I need to finish and I can't do anything until this starts working again.

 

I am using Ansys 18.2 student

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mmorg41 posted this 28 October 2017

 

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orndui posted this 04 November 2017

I'm having the same problem. Running v18.2 on Windows 10. 

In the month or two that I've been using v18.2 I've had to reinstall Ansys twice to solve this. I don't remember having this issue on v16.

Support staff: please address this asap. This is an extremely annoying bug. I'm prepared to supply you with any log/dump files or anything you need to solve this problem.

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mmorg41 posted this 04 November 2017

I had to reinstall it again too. What I did different this time and seemed to help was after the install I went to my program files and made sure everything under Ansys was deleted. This required me to go to the control panel and allow changed to be made to my c drive. Once I deleted everything, I reinstalled Ansys and have not had any issues since. Not sure if this is a permanent fix but so far so good. 

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Raef.Kobeissi posted this 04 November 2017

Hello, As mmorg41 stated in his post, you are supposed to make sure that there is no ANSYS folder from a previous version in your drives. This could cause problems.

Raef Kobeissi

orndui posted this 07 November 2017

Hello, As mmorg41 stated in his post, you are supposed to make sure that there is no ANSYS folder from a previous version in your drives. This could cause problems.

I can fix the problem by reinstalling just fine, that's not the issue. The issue is that I have to reinstall ANSYS every few weeks.

 

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Raef.Kobeissi posted this 07 November 2017

Hello orndui,

I installed ANSYS 18.2 on my Windows 10 several times on a PC and Laptop and I never encountered such a problem. Did you make sure that you have no remaining ANSYS files in your Windows from previous versions ?

Cheers

Raef Kobeissi

orndui posted this 07 November 2017

The initial install was on a brand new laptop with no previous installation of Ansys. I will try now to uninstall and subsequently delete any files/folders associated with Ansys, and then reinstalling. Hopefully the problem will not resurface, but I can't say that I'm optimistic.

 

It's frustrating that no Ansys staff have shown an interesting in assisting us in solving this problem.

pgl posted this 07 November 2017

orndui please don't get frustrated! I've reviewed the thread and have informed the ANSYS Fluent development team of the issue you are running into. Stay tuned for any feedback. 

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vganore posted this 08 November 2017

Guys, it could be a graphics card issue so please try updating graphics drivers, or it could be corrupted data that might be corrected with renaming of %APPDATA%\Ansys\v182 to v182.old.  

Vishal Ganore, ansys.com/student

orndui posted this 08 November 2017

Thanks for the response guys! I've just finished reinstalling Ansys, I took care to delete all Ansys related folders in %APPDATA% and %TEMP% after uninstalling.

If the problem reappears I'll make sure to try what you said vganore, and let you know of the result.

MarekSav posted this 14 November 2017

Hi vganore,
Where do I find this "%APPDATA%\Ansys\v182"?
Probably it is a dumb question but I am not a very expert user and I am having problems with this...


I see that the AppData folder is something to look in for residual hidden files after disinstalling the software, so if someone can explain to me what it is and where do I find it would ould be great.

vganore posted this 15 November 2017

Type %APPDATA% in your start menu and hit enter:

Vishal Ganore, ansys.com/student

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pgl posted this 17 November 2017

Hi Everyone, 

Our development team aren't aware of any logged product defects related to this, so if you do run into this issue again please help us nail this one down! Provide us with as much info. as possible, not just a screenshot, but licensing and application log files. Also let us know if the problem occurs when running Fluent within ANSYS Workbench or as a standalone application, and in the latter case if the problem is reproducible if you run Fluent in "true serial" mode..see screenshot below on how to do that: 

 

 

 

esluisfe posted this 2 weeks ago

Hi!

I had the same problem with the difference that it wouldn´t run even if I erased everything, uninstal everything ad installed it again as this post said. I found the answer to the problem in a post floating around the internet. Basically you have to disable your anti virus protection since the firewall is stopping the process. Since I did this I haven´t had any issues so I guess this can help anyboy with this problem.

 

Cheers!

vganore posted this 6 days ago

Thanks. I appreciate you taking time to share your solution. Many users will benefit -

Vishal Ganore, ansys.com/student

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