Unity SDK play & compile errors

Here’s a workaround in you need to use IL2CPP as the scripting backend:

Create a file called link.xml with the following contents:

<linker>
  <!--Preserve an entire assembly-->
  <assembly fullname="Backendless" preserve="all"/>
</linker>

Place that file into the Assets directory. Once you build, all the important parts of the Backendless SDK will be preserved and the project also runs just fine.

Hope this helps.

Cheers,
Mark