I looked up in the help how to upgrade my annotation to be editable in Pro. I saw I should run the Upgrade Dataset tool (which by the way is not named correctly as I am attempting to upgrade a annotation feature class not a dataset). So far this is good until I run the tool and get a warning that says the dataset cannot be versioned. Ok, so I unregistered the dataset that the annotation feature class resides in and ran the tool again. I get the same error. The error is here: 000100: The dataset cannot be versioned.—Help | ArcGIS Desktop and is not very helpful. I understand why it would need to be unversioned but I don't know how to get rid of this error since I've already unregistered it as versioned. I'm using 2.2.1.