error code: 126

- January 16, 2023 at 11:05 am
  
  babak.aghel
  Subscriber
  
  I am using Fluent 2020 R1 on a Windows 10 Education to run a 3D transient circulating fluidized bed simulation. I created a UDF to predict the flow behavior for each cell in the simulation.
  Until last week, the UDF source code worked without any problems, but today it has failed. The issue I am having is when I try loading the UDF after building it, it gives me Error code: 126. Could you please help me resolve this issue?
  Thank you in advance.
- January 16, 2023 at 11:56 am
  
  DrAmine
  Ansys Employee
  
  Is it same machine? Copy the case file into a new folder. Same with the *.c file. Start Ansys Fluent, compile but do not load, then read the case file. I am assuming you are using the built-in compiler.
  - January 16, 2023 at 12:18 pm
    
    babak.aghel
    Subscriber
    
    Yes, I am using the built-in compiler on the same machine. I followed your suggestion but It did not work.
    - January 16, 2023 at 12:29 pm
      
      DrAmine
      Ansys Employee
      
      Please update first to a recent Fluent version and try again (choosing explicelty the built-in compiler). Otherwise try using a compatible Visual Studio Compiler.

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