How to resolve 'za' error in OPEN LAYERS 3 map?

Question

When I am try to animate the map on the basis pf markers fetching. Till sometime map line animation is working properly but after sometime the line animation stops and when I see the browser's console I see : Cannot get the property 'za' of undefined. How to get rid of this. Any help will be appreciated. Thanks in advance.

Answer 1

If you use ol-debug.js this will give you a more informative error, and allow you to step through the library using a browser's developer tools.

When bug fixing, or developing, I usually have a commented out bit of html to pull in an ol-debug.js cdn as needed, and switch with ol.js :

<!--  <script src="https://cdnjs.cloudflare.com/ajax/libs/ol3/3.14.0/ol-debug.js"></script>-->