Create grayed out

When I mouse over “Create” on Android build settings, I see this…


It’s greyed out but doesn’t say why.
I know the manual lists the steps as follows:


But a lot of what I read makes it sound like you can generate a variety of symbols files. And the mouseover doesn’t say you have to have it set to IL2CPP.

Is there another setting that’s causing the symbol file creation to be disabled? Can I create a symbols file if the backend is anything other than IL2CPP? I don’t want to switch to that yet, as I think it slows build times…

Must disable Build Settings > Export Project field.

Thanks for the suggestion, but they may be unrelated on some versions. For example, the version I have now: