This error occurs when {@link api/ng.$compile `$compile`} attempts to fetch a template from some URL, and the request fails.
To resolve this error, ensure that the URL of the template is spelled correctly and resolves to correct absolute URL.
The [Chrome Developer Tools](https://developers.google.com/chrome-developer-tools/docs/network#network_panel_overview) might also be helpful in determining why the request failed.
If you are using {@link api/ng.$templateCache} to pre-load templates, ensure that the cache was populated with the template.