I just did a fresh install and had the same issue. Solved by:
- Click “Install missing platforms(s)…” in the highlighted error:
![Messages panel](https://i.stack.imgur.com/FNqgh.png)
- Then after the download/install, click “Intall Build Tools…”:
![Messages panel](https://i.stack.imgur.com/TYBwI.png)
- Then after the download/install, you will see Android under Tools menu