You don't have anything missing -- you have too much.
"dojo/i18n!esri/nls/jsapi"
Needs to be removed. This is 3.x and you seem to be using 4.x based on the code you posted.
require([
"esri/Map",
"esri/views/MapView",
"esri/layers/FeatureLayer",
"esri/layers/GraphicsLayer",
"esri/widgets/Search",
"esri/widgets/Home",
"esri/widgets/Legend",
"esri/widgets/Expand",
"dojo/domReady!"
],
function (
Map, MapView, FeatureLayer, GraphicsLayer, Search, Home, Legend, Expand
)