title: "You have included the Google Maps API multiple times on this page"
body: <p>Below Is my code I keep getting the You have included the Google Maps API multiple times on this page error.</p>
  
  <p>I have used a google weather overlay and a Custom Marker overlay </p>
  
  <p><div class="snippet" data-lang="js" data-hide="false">
  <div class="snippet-code">
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;!DOCTYPE html&gt;
  
  &lt;html&gt;
    &lt;head&gt;
      &lt;style&gt;
        html, body, #map {
          height: 100%;
          margin: 0px;
          padding: 0px
        }
        #panel {
            
            position: absolute;
            top: 5px;
            left: 50%;
            margin-left: -500px;
            z-index: 5;
            background-color: transparent;
            padding: 5px;
            //border: 1px solid #999;
        }
      &lt;/style&gt;
      
      &lt;script type="text/javascript" src="https://maps.googleapis.com/maps/api/js?v=AIzaSyD2ldpYgQrMTO6w9k-f9x0FhKlnB7n6pQ03.exp"&gt;&lt;/script&gt;
      
     
      &lt;script type ="text/javascript" src ="Assignment.js"&gt; &lt;/script&gt;
      
      &lt;script type="text/javascript" src="https://maps.googleapis.com/maps/api/js?libraries=weather&amp;sensor=true_or_false"&gt;&lt;/script&gt; 
      
      &lt;script type="text/javascript" src="https://maps.googleapis.com/maps/api/js?v=3.exp&amp;libraries=drawing"&gt;&lt;/script&gt;
    
  
    &lt;/head&gt;
    &lt;body&gt;
      &lt;div id="panel"&gt;
       
      &lt;button type="button" onclick="setHYB()"&gt;Hybrid Mode&lt;/button&gt;
      &lt;button type="button" onclick="setRoad()"&gt;Road Mode&lt;/button&gt;
      &lt;button type="button" onclick="zoomTo()"&gt;Choose Your Location&lt;/button&gt;
      &lt;button type="button" onclick="zoomIn()"&gt;Zoom In&lt;/button&gt;
      &lt;button type="button" onclick="zoomOut()"&gt;Zoom Out&lt;/button&gt;
      &lt;button type="button" id="weather" &gt;Weather On or Off&lt;/button&gt;   
      &lt;button type="button" onclick="addMarker()"&gt;Add your own Marker&lt;/button&gt;
      &lt;button type="button" onclick="clearMarkers()"&gt;Clear Own Markers&lt;/button&gt;
      &lt;button type="button" onclick="showMarkers()"&gt;Show Markers&lt;/button&gt;
      &lt;button type="button" onclick="deleteMarkers()"&gt;Delete Markers&lt;/button&gt;
  
     
      &lt;/div&gt;
        
        &lt;div id="map"&gt;&lt;/div&gt;
    &lt;/body&gt;
  &lt;/html&gt;</code></pre>
  </div>
  </div>
  </p>
  
  <p>Have I done something wrong?
  Have I missed anything?</p>