No sound when inputing notes

I recently purchased dorico pro 2 a couple of days ago for my macbookpro (runs high sierra). There isn’t any sound when i enter notes in with my midi keyboard or comp keyboard, or when i hit play on the playback…what step am i missing?

Thanks for purchasing and welcome to the forum.
So you don’t get any sound at all, right. Would you please create in Dorico a simple piano project with just a handful of arbitrary notes, then choose from the main menu ‘Help > Create Diagnostic Report’. That will create a zip file on your desktop. Please post here or send to ‘u dot stoermer at steinberg dot de’. Thanks

It’s also worth following the troubleshooting steps for playback in the FAQ thread for new users, if you’ve not yet done so.