If i use

var resourceGroup = ResourceGroup.Get("resourceGBla", "/subscriptions/4711/resourceGroups/resourceGBla")

and use it for a storage account, ResourceGroupName = resourceGroup.Name or ResourceGroupName = resourceGroup.Name.ToString() , it doesn't work. If i read in an existing resource, it is then possible to import the resource inside the stack ?

You shouldn’t call

ToString()

on it

OK thx, i will look into it.