Cannot create maintenance plan, I get the message "The task with the name '' and the creation name is not registered for use on this computer" I just installed SQL server 2016 (Standard edition) on a new server,
I'm trying to add a Maintenance plan (I've tried back up plan, rebuild indexes and many more)
I'm getting a weird message when I'm trying to open the task:


  The task with the name "back up plan database task" and the creation name is not registered for use on this computer.




At first, I thought it was a permission issue so I went to services.msc and change the login as to a user with administrator permissions - still not working.
Restarting the server - still not working.
I have been having the same issue with SSMS 18 (preview 4) when trying to access any maintenance plan tasks. 

I opened this item on the feedback site to capture the bug. Feel free to upvote if this describes the issue you're experiencing.

For now I am just using 17.x versions of SSMS to do any maintenance plan related tasks, since you can have both installed side-by-side.  



The bug was acknowledged on 10/15 and it looks like MS is working on a fix, so hopefully the next release resolves the issue.