elm-package install didn't install any package

[hulufei]

Hi, I try to run examples follow the tutorial:

1. cd examples/1
2. elm-reactor

The server started listening on 8000 successfully, when i visit http://localhost:8000/Main.elm, i got this message:

your elm-package.json file says you depend on package evancz/start-app,
but it looks like it is not properly installed. Try running 'elm-package install'.

So I run elm-package install in examples/1, I got

Packages configured successfully!

It only add a directory elm-stuff/, and nothing installed in elm-stuff/packages, and refresh the page still got "Try running 'elm-package install'".

So, what's the problem? thanks

[hulufei]

Oh, it's because I installed elm-platform 0.15 with brew cask , which is broken.