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Template Map Field

  • Hello.

    Using this page:
    I’m trying to show the map from the custom field created in a custom post type.

    I added my Google API key using method 1 in my functions file. I added this new key in my maps console to an existing project with all APIs enabled and connected to a billing account.

    In the back end, the map shows and I can enter and address and get the pinpoint just fine. On the front end, I have a gray square.

    My console chrome console shows this error:

    InvalidValueError: setCenter: not a LatLng or LatLngLiteral with finite coordinates: in property lat: NaN is not an accepted value

    Using the instructions from the link above, I pasted this helper code into my header:

    <style type="text/css">
    .acf-map {
        width: 100%;
        height: 400px;
        border: #ccc solid 1px;
        margin: 20px 0;
    // Fixes potential theme css conflict.
    .acf-map img {
       max-width: inherit !important;
    <script src=""></script>
    <script type="text/javascript">
    (function( $ ) {
     * initMap
     * Renders a Google Map onto the selected jQuery element
     * @date    22/10/19
     * @since   5.8.6
     * @param   jQuery $el The jQuery element.
     * @return  object The map instance.
    function initMap( $el ) {
        // Find marker elements within map.
        var $markers = $el.find('.marker');
        // Create gerenic map.
        var mapArgs = {
            zoom        : $'zoom') || 16,
            mapTypeId   : google.maps.MapTypeId.ROADMAP
        var map = new google.maps.Map( $el[0], mapArgs );
        // Add markers.
        map.markers = [];
            initMarker( $(this), map );
        // Center map based on markers.
        centerMap( map );
        // Return map instance.
        return map;
     * initMarker
     * Creates a marker for the given jQuery element and map.
     * @date    22/10/19
     * @since   5.8.6
     * @param   jQuery $el The jQuery element.
     * @param   object The map instance.
     * @return  object The marker instance.
    function initMarker( $marker, map ) {
        // Get position from marker.
        var lat = $'lat');
        var lng = $'lng');
        var latLng = {
            lat: parseFloat( lat ),
            lng: parseFloat( lng )
        // Create marker instance.
        var marker = new google.maps.Marker({
            position : latLng,
            map: map
        // Append to reference for later use.
        map.markers.push( marker );
        // If marker contains HTML, add it to an infoWindow.
        if( $marker.html() ){
            // Create info window.
            var infowindow = new google.maps.InfoWindow({
                content: $marker.html()
            // Show info window when marker is clicked.
            google.maps.event.addListener(marker, 'click', function() {
       map, marker );
     * centerMap
     * Centers the map showing all markers in view.
     * @date    22/10/19
     * @since   5.8.6
     * @param   object The map instance.
     * @return  void
    function centerMap( map ) {
        // Create map boundaries from all map markers.
        var bounds = new google.maps.LatLngBounds();
        map.markers.forEach(function( marker ){
                lng: marker.position.lng()
        // Case: Single marker.
        if( map.markers.length == 1 ){
            map.setCenter( bounds.getCenter() );
        // Case: Multiple markers.
        } else{
            map.fitBounds( bounds );
    // Render maps on page load.
            var map = initMap( $(this) );

    And I added this code to show the map into my template:

    $location = get_field('location');
    if( $location ): ?>
        <div class="acf-map" data-zoom="16">
            <div class="marker" data-lat="<?php echo esc_attr($location['lat']); ?>" data-lng="<?php echo esc_attr($location['lng']); ?>"></div>
    <?php endif; ?>

    The actual field name is ‘address’ so I have tried a bunch of variations to no avail. I keep getting the same error in my console, the lat and long is not coming through. Any ideas?

    Problem seen here:

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