You need two task objects one of %SYS.Task class and another of your concrete implementation class. Call AssignSettings
 to merge settings. Example:

Set tTaskDefClass = "User.Task.MessageArchive"

Set tTaskObj = ##class(%SYS.Task).%New()
Set tTaskObj.NameSpace = "<NameSpace>"
Set tTaskObj.Name = "<tTaskName>"
Set tTaskObj.TaskClass = tTaskDefClass
Set tTaskObj.Description = "<tTaskDesc>"

Set tTaskDefObj = $System.OBJ.New(tTaskDefClass)
Set tTaskDefObj.BaseDir = "your value"
Set tStatus = tTaskObj.AssignSettings(tTaskDefObj)
Quit:$$$ISERR(tStatus) tStatus
Kill tTaskDefObj

Set tStatus = tTaskObj.%Save()

I'm not really sure why do you want to have a cube with 0 facts? Can you elaborate why you need this?

But yes, clearing the datasource and rebuilding would get you cube with 0 rows.

You are trying to change % routines, which are available in all namespaces.

Most system routines start with %, so they would be available everywhere.

User routines should not start with % (they may start with %Z).

Are you able to open and login into System Management Portal?

http://ip:52773/csp/sys/UtilHome.csp

Have you specified Address? Looks empty.

If it's GCP do you have a static public IP address/hostname you can connect to?

Can you open management portal?

You need to use the IDE to edit routines.

For WRC access/Studio write to your InterSystems contact.

Have you tried installing Atelier or VS Code? They are available without registration.

Check this discussion.

Yes, try this instead (in adaptor):

Method OnTask() As %Status
{
    Set sc = ##super()
    // all rows were just processed
    // add your logic here
    If '$IsObject(..%CurrResultSet) {
        Set ^dbg($i(^dbg)) = "Last row"
    }
    Quit sc
}

Worked for me.

It all depends on your locale.

In RUSW for example UTF8 is the default, bit  not in English locales.

You can also use ^NLS to check/modify the defaults.

You can use both:

[ SqlComputeOnChange = (%%INSERT, %%UPDATE) ]

Do you want for each Movie object (row) to guarantee that it's Actors property would be unique (containing only distinct Actors)?

Or is it something else?

Can you show us examples of correct and incorrect Movie records?

If you want it stored, make it triggered computed like this:

Property LabCode As %Library.String(MAXLEN = 64) [
  SqlColumnNumber = 5,
  SqlComputeCode = { set {*}= $EXTRACT({LabName},0,3)_" "_{LabID}},
  SqlComputed,
  SqlComputeOnChange = LabName ];

Docs.

Note that it wouldn't recalc LabCode values for existing rows. If you need that, trigger recalculation with trivial update.

That would work storagetime but not at runtime.

I think runtime hook disallowing duplicate inserts would be better.

To OP. Age seems like a strange property to store in your use case. It's better to store DoB I think.