How to set up FlexSimPy ?

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David Wang asked Sep 13, '23 Kavika F commented Sep 15, '23

How to set up FlexSimPy ?

I am trying to set up FlexSimPy. I got the same problem just like his.Starting a flexsim simulation model from python I followed the instruction but this didn't work out for me.I have also chose the latest C++ version. My Flexsim version is 23.0.10. So I cloned version 23.0 of FlexSimPy.

I still got the error PyConnector310.dll is not a Win32 application.

This is what my configuration looks like.

I don't have any experience with visual studio and the SDK of Flexsim, therefore i can't judge my approach. I hope you can help me to make it work!

Software Version:

FlexSim 23.0.10

flexsimpy interaction between flexsim and python

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Kavika F ♦ commented · Sep 13, 2023 at 04:53 PM

Hey @David Wang, what steps are you taking to get this error? Does this happen after building the solution and trying to open FlexSim?

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David Wang Kavika F ♦ commented · Sep 13, 2023 at 05:06 PM

The problem was at Step5 of build instructions. When I press the build solution button in Visual Studio. The error PyConnector310.dll is not a Win32 application will pop out.

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Answer 1 · 2023-09-13T20:05:08Z

Kavika F answered Sep 13, '23 Kavika F commented Sep 15, '23

Hey @David Wang, after some troubleshooting, it seems that you're trying to Run/Debug the solution. If you read the bullet points under step 5, it gives you the proper use-cases for what to do after building.

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David Wang commented · Sep 14, 2023 at 09:07 AM

I tried those cases, it doesn't work for me.

First case when I run the script from How to use Flexscript (Python) to create the data into global table Flexsim will crash. test.fsm TestScript.py

Picture below is my Global Preference.

Second case when I run TestFlexsimPy.py it will have a error No module named 'FlexSimPy'.

So this is why I suspect the problem is at building. I have tried the tips on .DLL is Not A Valid Win32 Application: 5 Ways to Fix it but it still doesn't work.

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test.fsm (25.2 KiB)

testscript.py (163 B)

Kavika F ♦ David Wang commented · Sep 14, 2023 at 11:01 PM

Hey @David Wang, for the first question, I don't know what you mean when you say that FlexSim crashes when you run the script described in the linked post. I just downloaded the two files talked about in the post (a model and a .py file) and ran them. I had to change the script file name in the "generateData" function to lowercase because that's what it downloaded as, but otherwise it ran fine - no crashing. Do you have any steps to reproduce the crash you're experiencing?

If you built the FlexSimPy module correctly from the module folder of your Module Development version of FlexSim, then your PyConnector310.dll should have a newer modified date than the others.

That will help you identify if you (1) actually build the FlexSimPy.sln and (2) if it worked correctly.

Are you sure your machine is using Python 3.10? You can open a command prompt and type the following command to get a list of python versions installed on your machine.

py -0

For the second issue, the error you get is telling you that the python file cannot find the module specified. The module was built and output into the "FlexSimPy\out\Rel_3_10" file path. There should be 4 files there:

You'll want the FlexSimPy.pyd file which is like a .dll file so your python code can find the functions contained in FlexSimPy. Copy it over into the same directory as your TestFlexSimPy.py and it should find it.

If you get a "Fatal Python error" due to GIL complications, follow the fix in this answer.

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David Wang Kavika F ♦ commented · Sep 15, 2023 at 08:13 AM

For the first issue. This is what my crash looks like.I have checked the things you have mentioned but I still can't fix it. My PyConnector310.dll have a newer modified date than the others.

My python version is 3.10.9.

For the second issue when I build in Visual Studio. There are only 3 files there. My FlexSimPy.pyd is missing.

My main goal is to get data from Flexsim in order to train my model dynamically. I found that the Reinforcement Learning in Flexsim uses socket to communicate. Is it possible on my case as well? If it is possible then maybe I will use socket instead of FlexsimPy. And is there any tutorial or example on socket communicate with Flexsim? Thanks!

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