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Error in running the script generate_biphoton_wavefunction.py

- June 9, 2023 at 2:53 pm
  
  Amin Khavasi
  Subscriber
  
  I am trying to run the SFWM example. I did all the steps but in step 5 which is the running of the python code, I am getting the following error:
  ImportError: cannot import name 'mrr_biphoton_wavefunction' from 'qinterconnect.solver' (C:\Program Files\Lumerical\v222\api\python\qinterconnect\solver.cp39-win_amd64.pyd)
- June 9, 2023 at 3:28 pm
  
  Guilin Sun
  Ansys Employee
  
  I just tested this example and it works fine. Please make sure you have the latest version of the software and have qINTERCONNECT license.
  /forum/forums/topic/how-to-use-qsolver/
- June 12, 2023 at 1:29 pm
  
  Amin Khavasi
  Subscriber
  
  Thank you for the response. Yes, I installed the 2023 version and it worked.
- July 5, 2023 at 6:28 am
  
  Yang Yongxiang
  Subscriber
  
  I also encountered this problem：
  ImportError: cannot import name 'mrr_biphoton_wavefunction' from 'qinterconnect.solver' (C:\Program Files\Lumerical\v231\api\python\qinterconnect\solver.cp39-win_amd64.pyd)
  But the version I am using is 2023 R1. And the case 'Spontaneous Parametric Down Conversion (SPDC) Photon Source' can operate normally.
- July 5, 2023 at 2:38 pm
  
  Guilin Sun
  Ansys Employee
  
  Probably you need to install the latest version, as two of us tested successfully.

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