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CM Maps Route Manager (CMMRM) - Troubleshooting


Map canvas is blank

  1. Make sure there is a valid Google Maps App Server Key entered (not the browser key) in the plugin settings. Check Key restrictions: None.
  2. Make sure all required APIs are enabled in your Google Maps App (the APIs list can be found in the Setup article).
  3. Check if a WordPress plugin or theme didn't embed another Google Maps Javascript API on the same page within your website: open your browser's web console (Ctrl + Shift + J in Google Chrome or Ctrl + Shift + K in Firefox) and check if there's an error message indicating that the multiple Google APIs has been called.
    Since our plugin embeds the Google API only when it's needed and other plugins often do this on each page, you may need to disable the conflicting plugin or change your theme to fix this issue.
  4. Open your browser's web console (as described above) and check for the Javascript errors. Some error (which comes from other plugins or the theme) can stop processing our script which is responsible for loading the map.
  5. If your theme or some other plugin have "Google PageSpeed Optimization" option - please disable it. It crashes the JavaScript variables embeded in the HTML code and can be the reason your map doesn't show up.

Altitude is incorrect or elevation graph is not showing up

Make sure the Elevation API is enabled in your Google Maps App settings. Then it may be necessary to edit the specific route and press the "Save" button to calculate the altitude values again.

Also, check in your theme's settings if there's a " defer script loading" (or similar) option enabled. The option helps optimize your website's load speed but it doesn't work well with Google libraries and can prevent that the elevation graph from showing.


I cannot search for places on the edit map page

Make sure the Places API is enabled on your Google Maps App settings.


Geolocation error shows up on the map page

From the recent web browsers versions, the Geolocation Web API works only on websites that use HTTPS protocol. It won't work with the standard HTTP websites without SSL/TLS encryption.

So SSL / HTTPS must be running on your website.


404 Page not found error

It seems your Wordpress doesn't recognize the routes pages' permalink correctly.

  1. Make sure you don't have a page or post with the same slug (name) as you gave for the plugin's permalink part in the plugin settings. If there's a post with the same slug you may need to change it's slug or the maps permalink part in the plugin settings.
  2. Go to wp-admin → Settings → Permalinks make sure that the "Post name" has been set as the permalink structure.
  3. Install "Rewrite Rules Inspector" plugin. Then go to wp-admin → Tools → Rewrite Rules and press the "Flush rules" button.
  4. Make sure that your post pages are loading correctly using pretty URLs. This is a rare issue but if not this means that your server doesn't support URL rewrite, the htaccess files are not setup correctly on Apache server or you're using other HTTP server where you need to setup the rewrite manually. Please contact your server administrator to solve this.

Imported KML/GPX file seems to be incorrect

Our plugin imports only the trail path from the KML/GPX file and doesn't import the markers. It has been designed to import simple GPS tracker data and doesn't support complex KML/GPX maps. It creates a start and end marker automatically but you need to add other markers manually.


I cannot change travel mode

For the imported KML/GPX files you can use only the Direct travel mode because the imported route path is accurate enough that you don't need to use Google Directions Service to find a path between waypoints as you do when drawing a route manually. Besides that Google Maps' Direction Service won't accept a request with such a huge number of waypoints when switching the travel mode.


I cannot draw a route - I can only add a marker

For the imported routes when the waypoints number is greater than 200 there's no option to draw a route or change position of the existing waypoints. In the past, it caused performance issues for our users and crashed the web browser. Even "My Maps" service from Google doesn't allow to edit routes imported from the KML/GPX files. You can add only locations' markers.


Some icons are not being displayed or there's a rectangle in some text labels

Our plugin uses the Wordpress' build-in Dashicons set. However on some themes the dashicons are not displayed properly on the front-end. It's not the plugin's issue, but as of yet we haven't worked out what is causing this problem.


Instructions are not showing up on the edit route page

Go to wp-admin  CM Maps Routes Manager  Settings  Labels tab. There's an Instructions field that you can fill in with the instructions or link to the plugin's documentation for your users. 


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