You added a require to your require array but you did not adjust the order of your require vars.
Your requires and their corresponding vars must be in the same order in AMD style coding.
<SPAN class="token function">require</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">[</SPAN>
<SPAN class="string token">"esri/layers/TileLayer"</SPAN><SPAN class="punctuation token">,</SPAN>
<SPAN class="string token">"esri/Map"</SPAN><SPAN class="punctuation token">,</SPAN>
<SPAN class="string token">"esri/views/MapView"</SPAN><SPAN class="punctuation token">,</SPAN>
<SPAN class="string token">"esri/Graphic"</SPAN><SPAN class="punctuation token">,</SPAN>
<SPAN class="string token">"esri/geometry/Point"</SPAN><SPAN class="punctuation token">,</SPAN>
<SPAN class="string token">"esri/symbols/SimpleMarkerSymbol"</SPAN><SPAN class="punctuation token">,</SPAN>
<SPAN class="string token">"esri/geometry/Polyline"</SPAN><SPAN class="punctuation token">,</SPAN>
<SPAN class="string token">"esri/symbols/SimpleLineSymbol"</SPAN><SPAN class="punctuation token">,</SPAN>
<SPAN class="string token">"esri/geometry/Polygon"</SPAN><SPAN class="punctuation token">,</SPAN>
<SPAN class="string token">"esri/symbols/SimpleFillSymbol"</SPAN><SPAN class="punctuation token">,</SPAN>
<SPAN class="string token">"dojo/domReady!"</SPAN>
<SPAN class="punctuation token">]</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="keyword token">function</SPAN><SPAN class="punctuation token">(</SPAN>TileLayer<SPAN class="punctuation token">,</SPAN> Map<SPAN class="punctuation token">,</SPAN> MapView<SPAN class="punctuation token">,</SPAN>
Graphic<SPAN class="punctuation token">,</SPAN> Point<SPAN class="punctuation token">,</SPAN> SimpleMarkerSymbol<SPAN class="punctuation token">,</SPAN>
Polyline<SPAN class="punctuation token">,</SPAN> SimpleLineSymbol<SPAN class="punctuation token">,</SPAN>
Polygon<SPAN class="punctuation token">,</SPAN> SimpleFillSymbol
<SPAN class="punctuation token">)</SPAN> <SPAN class="punctuation token">{</SPAN><SPAN class="line-numbers-rows"><SPAN></SPAN><SPAN></SPAN><SPAN></SPAN><SPAN></SPAN><SPAN></SPAN><SPAN></SPAN><SPAN></SPAN><SPAN></SPAN><SPAN></SPAN><SPAN></SPAN><SPAN></SPAN><SPAN></SPAN><SPAN></SPAN><SPAN></SPAN><SPAN></SPAN><SPAN></SPAN><SPAN></SPAN></SPAN>The abc’s of AMD | ArcGIS Blog