Index: customize.js
===================================================================
--- customize.js	(revision 121794)
+++ customize.js	(working copy)
@@ -4,24 +4,28 @@
 	$( document ).ready( function() {
 		// Make it possible to reset the color based on a radio input's value.
 		// `active` can be either `custom` or `default`.
-		api.control( 'accent_hue_active' ).setting.bind( function( active ) {
-			var control = api.control( 'accent_hue' ); // Get the accent hue control.
+		try {
+			api.control( 'accent_hue_active' ).setting.bind( function( active ) {
+				var control = api.control( 'accent_hue' ); // Get the accent hue control.
 
-			if ( 'custom' === active ) {
-				// Activate the hue color picker control and focus it.
-				control.activate( {
-					completeCallback: function() {
-						control.focus();
-					}
-				} );
-			} else {
-				// If the `custom` option isn't selected, deactivate the hue color picker and set a default.
-				control.deactivate( {
-					completeCallback: function() {
-						control.setting.set( control.params.defaultValue );
-					}
-				} );
-			}
-		} );
+				if ( 'custom' === active ) {
+					// Activate the hue color picker control and focus it.
+					control.activate( {
+						completeCallback: function() {
+							control.focus();
+						}
+					} );
+				} else {
+					// If the `custom` option isn't selected, deactivate the hue color picker and set a default.
+					control.deactivate( {
+						completeCallback: function() {
+							control.setting.set( control.params.defaultValue );
+						}
+					} );
+				}
+			} );
+		} catch( error ) {
+			console.log( error );
+		}
 	} );
 }( jQuery, wp.customize ) );