Numeric attribute expression?

[master_t]

Hi everyone

I'm trying to add an Attribute Expression to a measure in my extension, and if I set it to type "string" it works correctly:

TargetTotal: {
    type: "string",
    component: "expression",
    expression: "optional",
    label: "Target total",
    ref: "qAttributeExpressions.0.qExpression"
}

however, unlike normal properties, if I change the type to:

type: "number"

the extension stops working. Are numeric attributes expressions just not supported? Or am I doing something wrong?

[Anil_Babu_Samineni]

May be use as "Integer" instead "Number". Could be Number is not valid data type?