The given model has already started the "post_publication" process

[Nekker]

hello !

My error comes from my controller ($modelSate =$processHandler->start($model);).

I looked in the processHandler to identify the error but I don't know of or comes this error,

Thank you in advance for your help and I will be happy to resolve the error with you.

[maarekj]

What is the error ? An exception ? An configuration error ... ?

[Nekker]

this is an exception because the controller is taken into account but it has blocked the start function.

that's what we but an error message with the process level.

thank you for your help

[bakurin]

@Nekker check getWorkflowIdentifier method of your model. In case you use the same implementation as in example and pass an entity with id equals to null you will get the duplication of identifier that causes the error.

[FMAxGr33Dx]

@bakurin Thanks for help but this issue is has solved half.
How could you do it and she variables to switch between steps is another view in the twig.