B737_AVL_Tutorial OSError: [WinError 193] %1 is not a valid Win32 application

[Yash Thummar]

Hello,

I want to use AVL aerodynamic method and for that to understand the AVL method I am trying to run B737_AVL_Tutorial as per the Tutorial given but still, I am getting the error. I have already changed the directory path here is the Screenshot.

 

You can see the Aerodynamics and Stability file path here:

Also, avl_files is in the Tutorial folder which contains these files: batch_0001.run, Boeing_737-800.avl, Boeing_737-800.mass, commands_0001.deck

But I am still getting the following error:

Traceback (most recent call last):
  File "c:\Users\ADMIN\OneDrive\Projects\capstone_project\Download\Tutorials-2.5.2\Tutorials-2.5.2\B737_AVL_Tutorial\tut_mission_B737_AVL.py", line 740, in <module>
    main()    
  File "c:\Users\ADMIN\OneDrive\Projects\capstone_project\Download\Tutorials-2.5.2\Tutorials-2.5.2\B737_AVL_Tutorial\tut_mission_B737_AVL.py", line 34, in main
    analyses.finalize()
  File "C:\Users\ADMIN\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\LocalCache\local-packages\Python39\site-packages\suave-2.5.2-py3.9.egg\SUAVE\Analyses\Analysis.py", line 271, in finalize
    analysis.finalize(*args,**kwarg)
  File "C:\Users\ADMIN\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\LocalCache\local-packages\Python39\site-packages\suave-2.5.2-py3.9.egg\SUAVE\Analyses\Analysis.py", line 271, in finalize
    analysis.finalize(*args,**kwarg)
  File "C:\Users\ADMIN\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\LocalCache\local-packages\Python39\site-packages\suave-2.5.2-py3.9.egg\SUAVE\Analyses\Analysis.py", line 271, in finalize
    analysis.finalize(*args,**kwarg)
  File "C:\Users\ADMIN\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\LocalCache\local-packages\Python39\site-packages\suave-2.5.2-py3.9.egg\SUAVE\Analyses\Aerodynamics\AVL.py", line 148, in initialize
    self.process.compute.lift.inviscid.initialize(sv,cv,kf,srr,rf,po,ta,ssa,rrc,pra,lc)
  File "C:\Users\ADMIN\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\LocalCache\local-packages\Python39\site-packages\suave-2.5.2-py3.9.egg\SUAVE\Analyses\Aerodynamics\AVL_Inviscid.py", line 149, in initialize
    self.sample_training()
  File "C:\Users\ADMIN\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\LocalCache\local-packages\Python39\site-packages\suave-2.5.2-py3.9.egg\SUAVE\Analyses\Aerodynamics\AVL_Inviscid.py", line 285, in sample_training
    results =  self.evaluate_conditions(run_conditions, trim_aircraft)
  File "C:\Users\ADMIN\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\LocalCache\local-packages\Python39\site-packages\suave-2.5.2-py3.9.egg\SUAVE\Analyses\Aerodynamics\AVL_Inviscid.py", line 469, in evaluate_conditions
    results_avl = run_analysis(self,print_output)
  File "C:\Users\ADMIN\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\LocalCache\local-packages\Python39\site-packages\suave-2.5.2-py3.9.egg\SUAVE\Methods\Aerodynamics\AVL\run_analysis.py", line 40, in run_analysis
    call_avl(avl_object,print_output)
  File "C:\Users\ADMIN\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\LocalCache\local-packages\Python39\site-packages\suave-2.5.2-py3.9.egg\SUAVE\Methods\Aerodynamics\AVL\run_analysis.py", line 86, in call_avl
    avl_run = subprocess.Popen([avl_call,geometry],stdout=sys.stdout,stderr=sys.stderr,stdin=subprocess.PIPE)
  File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.9_3.9.3568.0_x64__qbz5n2kfra8p0\lib\subprocess.py", line 951, in __init__
    self._execute_child(args, executable, preexec_fn, close_fds,
  File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.9_3.9.3568.0_x64__qbz5n2kfra8p0\lib\subprocess.py", line 1420, in _execute_child
    hp, ht, pid, tid = _winapi.CreateProcess(executable, args,
OSError: [WinError 193] %1 is not a valid Win32 application

Please help me with this error, if someone has any solution regarding this error.

And also please correct me if I did anything wrong.

I really appreciate any help you can provide.
Yash 

[Emilio]

Hi Yash,

The avl bin is not correct. You can download it from here.

-Emilio

[Yash Thummar]

Thank you Emilio for your reply.

I have tried many options and also changed avl files from the link you provided but still facing the same error.
Actually, I am using Windows 10 and I am not sure how to install AVL on my machine. Is there any specific command so I can check whether AVL is successfully installed in my machine and I can use it with python?

Thank you in advance
Yash 

[Emilio]

Sorry Yash! AVL is not our software package and I don't have a Windows machine to try myself and debug.

I hope someone else on the internet can chime in and help!

[Yash Thummar]

Hello Emilio, 

I know it's a late response. But I tried all the possible ways to run this tutorial in the meantime. And after some tries, I am receiving the following error:

C:\B737_AVL_Tutorial>C:/Users/ADMIN/AppData/Local/Programs/Python/Python36/python.exe c:/B737_AVL_Tutorial/tut_mission_B737_AVL.py

Traceback (most recent call last):

  File "c:/B737_AVL_Tutorial/tut_mission_B737_AVL.py", line 742, in <module>
    main()
  File "c:/B737_AVL_Tutorial/tut_mission_B737_AVL.py", line 34, in main
    analyses.finalize()
  File "C:\Users\ADMIN\AppData\Local\Programs\Python\Python36\lib\site-packages\suave-2.5.2-py3.6.egg\SUAVE\Analyses\Analysis.py", line 271, in finalize
    analysis.finalize(*args,**kwarg)
  File "C:\Users\ADMIN\AppData\Local\Programs\Python\Python36\lib\site-packages\suave-2.5.2-py3.6.egg\SUAVE\Analyses\Analysis.py", line 271, in finalize
    analysis.finalize(*args,**kwarg)
  File "C:\Users\ADMIN\AppData\Local\Programs\Python\Python36\lib\site-packages\suave-2.5.2-py3.6.egg\SUAVE\Analyses\Analysis.py", line 271, in finalize
    analysis.finalize(*args,**kwarg)
  File "C:\Users\ADMIN\AppData\Local\Programs\Python\Python36\lib\site-packages\suave-2.5.2-py3.6.egg\SUAVE\Analyses\Aerodynamics\AVL.py", line 148, in initialize        
    self.process.compute.lift.inviscid.initialize(sv,cv,kf,srr,rf,po,ta,ssa,rrc,pra,lc)
  File "C:\Users\ADMIN\AppData\Local\Programs\Python\Python36\lib\site-packages\suave-2.5.2-py3.6.egg\SUAVE\Analyses\Aerodynamics\AVL_Inviscid.py", line 149, in initialize
    self.sample_training()
  File "C:\Users\ADMIN\AppData\Local\Programs\Python\Python36\lib\site-packages\suave-2.5.2-py3.6.egg\SUAVE\Analyses\Aerodynamics\AVL_Inviscid.py", line 285, in sample_training
    results =  self.evaluate_conditions(run_conditions, trim_aircraft)
  File "C:\Users\ADMIN\AppData\Local\Programs\Python\Python36\lib\site-packages\suave-2.5.2-py3.6.egg\SUAVE\Analyses\Aerodynamics\AVL_Inviscid.py", line 469, in evaluate_conditions
    results_avl = run_analysis(self,print_output)
  File "C:\Users\ADMIN\AppData\Local\Programs\Python\Python36\lib\site-packages\suave-2.5.2-py3.6.egg\SUAVE\Methods\Aerodynamics\AVL\run_analysis.py", line 40, in run_analysis
    call_avl(avl_object,print_output)
  File "C:\Users\ADMIN\AppData\Local\Programs\Python\Python36\lib\site-packages\suave-2.5.2-py3.6.egg\SUAVE\Methods\Aerodynamics\AVL\run_analysis.py", line 86, in call_avl

    avl_run = subprocess.Popen([avl_call,geometry],stdout=sys.stdout,stderr=sys.stderr,stdin=subprocess.PIPE)

  File "C:\Users\ADMIN\AppData\Local\Programs\Python\Python36\lib\subprocess.py", line 709, in __init__
    restore_signals, start_new_session)
  File "C:\Users\ADMIN\AppData\Local\Programs\Python\Python36\lib\subprocess.py", line 997, in _execute_child
    startupinfo)
PermissionError: [WinError 5] Access is denied

I know it's still a Windows machine but I will be glad if you could confirm that I have added the right AVL bin file that I added in the script screenshot attached above.

Or anyone who can help me with this error who have face this error or anyone please let me know if anyone know this tutorial is able to run in windows machine.

Thank you in advance,

Yash 

[Chang]

Hi, Yash,

Personally, I think that the avl_bin_name should be "C:/avl3.36/avl.exe" in line 110 of "tut_mission_B737_AVL.py". Otherwise, you'll run into some path and file permission issues. Another solution is change the avl_call in line 86 of "suave-2.5.2-py3.6.egg\SUAVE\Methods\Aerodynamics\AVL\run_analysis.py" to your file path, it's shown as the following picture. Both methods work on my Windows machine. But the first way is better in my opinion, because there is no need to modify the SUAVE source file.

Good luck,

Chang

[Yash Thummar]

Thank you so much Chang. 

Your suggested first method is working for me. I have been trying to run this tutorial for the last 4 to 5 months. As I remembered I have also tried this solution and tried to use AVL version 4.0, and 3.6 also I tried Python 3.11.3(latest version), 3.9 and 3.6 but still, I was getting this type of Windows error. But the best part is today finally it works.

Again, thank you so much for your kind help,
Yash

[Chang]

You‘re welcome. Glad to see it works for you, too.

Chang