Error using yarn

[jlandure]

yarn install with the "model" ends with this error:

[2/4] 🚚  Fetching packages...
error reveal.js@2.6.2: The engine "node" is incompatible with this module. Expected version "~0.8.0".
error Found incompatible module

With npm it works perfectly.
My settings:
npm -v => 4.1.1

[hgwood]

I've seen this too, but I don't think we can do anything about it except for upgrading to Reveal 3 (#127).

[jlandure]

Can we try the following workaround: yarn --ignore-engines?