Working with the latest 5.3 beta of the Unity Editor. Trying to simply do a desktop build but the ‘build’ button is greyed out in Build Settings>PC, mac & Linux standalone.
Why?
Hi @eco_bach 
I answered your question via Twitter but am posting this here for all users. In 5.3 you have to select each platform you want support for 
See this gif for more info
This is what people mean when there’s only the Unity and MonoDevelop options.
