Pipe Init Failed. Error Code: 231

[K3ik3i]

Hello.

I am simulation a FMU which works with windows clock.
When i load FMU and do instantiate, i meet below error.

[ERROR] fmi2Instantiate: Pipe Init Failed. Error Code: 231

Where the error occurred is,
fmuins = instantiate_fmu(unzipdir=unzipdir, model_description=md)

And the terminal log is as below.
[OK] fmi2Instantiate: init
[OK] fmi2Instantiate: set startValues
[OK] zsBuffer=D:\kk\CodingArea
[OK] szPath=C:\Users\Administrator\AppData\Roaming
[OK] vECUPath=C:\Users\Administrator\AppData\p4_vecu_sbw_cyt2b.fmu\binaries\win32\p4_vecu_sbw_cyt2b.exe
[OK] vECUDir=C:\Users\Administrator\AppData\p4_vecu_sbw_cyt2b.fmu\binaries\win32
[OK] startExternal().
[OK] CreateProcess failed().
[ERROR] fmi2Instantiate: Pipe Init Failed. Error Code: 231

Does anyone knows what's causing it?

[t-sommer]

Can you share the FMU?

[K3ik3i]

@t-sommer
Sorry i cannot share because this FMU is possession of company.
Can you share some hypothesis without FMU?

[t-sommer]

Does unzipdir contain the file binaries/win32/p4_vecu_sbw_cyt2b.exe?

[K3ik3i]

@t-sommer
Thanks, the reason was path in the unzipdir is different from path FMU wrapper set.
Can i change the path for the extract API?
unzipdir = extract(fmu1)

[t-sommer]

You can pass the extracted FMU to simulate_fmu():

from fmpy import *

unzipdir = extract('p4_vecu_sbw_cyt2b.fmu')

result = simulate_fmu(unzipdir)