NullReferenceException

[Vikram Sundara]

Hi,

I tried to run Automation.Automation2() but it throws up a NullReferenceException. Is there an issue?

process=DWSIM.Automation.Automation2()

NullReferenceException: Object reference not set to an instance of an object.
at DWSIM.Automation.Automation2..ctor() in C:\Users\Daniel\source\repos\DanWBR\dwsim6\DWSIM.Automation\Interface.cs:line 145

[Lucas Francisco dos Santos]

Hey Vikram Sundara,

Have you figured out how to solve this issue with Automation2()? I am facing the same problem whenever I try to instanciate a second interface object with Automation2().

[Lucas Francisco dos Santos]

Perhaps the answer is in my previous comment: there must be only one instance of automation manager for multiple flowsheet objects.

from DWSIM.Automation import Automation2

if ('interf' not in locals()):    # create automation manager
    interf = Automation2()

flowsheet1 = interf.LoadFlowsheet('path/to/simulation1')
flowsheet2 = interf.LoadFlowsheet('path/to/simulation2')

That worked for me.