James,
Your issue is that the sources property is called layer and not featureLayer anymore as it was in previous versions.
var searchWidget = new Search({
view: view,
includeDefaultSources: false,
locationEnabled: false,
sources: [{
layer: Parcels,
searchFields: ["PM_PAR_14"],
displayField: "PM_PAR_14",
exactMatch: false,
outFields: ["PARCEL_ID"],
name: "Parcel Number",
placeholder: "example: RP40N02W162502",
}, {
layer: Parcels,
searchFields: ["PM_MAIL_NM"],
displayField: "PM_MAIL_NM",
exactMatch: false,
outFields: ["PM_MAIL_NM"],
name: "Last Name, First Name",
placeholder: "example: Doe, John",
}, {
layer: Addresses,
searchFields: ["FULLADDRSS"],
exactMatch: false,
outFields: ["*"],
name: "Address",
}, {
layer: Actions,
searchFields: ["LABEL"],
exactMatch: false,
outFields: ["*"],
name: "Land Use Action",
}, {
featureLayer: Divisions,
searchFields: ["LD_Number"],
exactMatch: false,
outFields: ["*"],
name: "Land Division",
}]
});