Error 000732 using UploadServiceDefinition_server function

[CorinneRobin]

Good morning everyone,

I'm currently trying to publish a layer from an ArcGIS Pro project using UploadServiceDefinition_server function, but it always returns me the same error. (Error 000732)

This error seems to appear whenever there's a problem with any parameter, and here it seems to come from the server parameter (My Hosted Services in my case since I'm pushing to AGOL)

I'm running ArcGIS 10.6, arcpy 2.1.3, and already tried everything described here https://support.esri.com/fr/technical-article/000010149 

Here's the error :

"ExecuteError: Échec de l’exécution. Les paramètres ne sont pas valides.

ERROR 000732: Serveur : le jeu de données My Hosted Services n’existe pas ou n’est pas pris en charge Échec de l’exécution de (UploadServiceDefinition)."

Can someone help me ?

Thanks in advance !

[KellyGerrow]

Are you signed in with an ArcGIS Online account that has publishing privileges in an ArcGIS Online organization?

The error message indicates that there isn't a publishing server, My Hosted Services. If you are still experiencing problems, please get in touch with tech support.