I'm trying to get a ReactNative Android app up and running, but after going through the initial setup guide, I get the error:

> 
> Error:Failed to find target with hash string 'android-26' in:
>  /Users/nicholasstephan/Library/Android/sdk  
> 
>  Install missing platform(s) and sync project
> 
> 
> 

I don't want to install and use SDK v26, React Native specifically uses v23.0.1. I'm not sure where that reference to v26 comes from. 

Any ideas where that reference to android-26 could be coming from?