Searchbox not working (unknown function)

Whenever I try and search for an address I get this error.

which version of SDK and plugin are you using?

I’ve downloaded the zip maps-sdk-for-web-examples-master, but it’s very possible that I’ve used both V5 and V6

If you are using SDK v6 then try to use the newest SearchBox plugin.
For example with cdn:

<script src="https://api.tomtom.com/maps-sdk-for-web/cdn/plugins/SearchBox/3.1.3-public-preview.0/SearchBox-web.js"></script>
<link rel='stylesheet' type='text/css' href='https://api.tomtom.com/maps-sdk-for-web/cdn/plugins/SearchBox/3.1.3-public-preview.0/SearchBox.css'>

Same result unfortunately

Without more details it’s just guessing…