"Unknown handler: file" error when tutorial app is launching on Heroku

[johndevor]

Walking through the tutorial documentation and I receive this error when trying to start the app on Heroku.

Starting standalone server in PROD mode

ESERVERSTART

This error is thrown by the electrode-server module
There was an error starting the Hapi.js server
Please check the output of the stack trace below and correct the error shown
error, please file an issue on the electrode-server repository

If you have followed this resolution step and you are still seeing an

git+https://github.com/electrode-io/electrode-server.git

Unknown handler: file
at internals.Connection._addRoute (/app/node_modules/hapi/lib/connection.js:412:19)
Unhandled rejection Error: Unknown handler: file
at Object.exports.assert (/app/node_modules/hapi/node_modules/hoek/lib/index.js:736:11)
at Object.exports.defaults (/app/node_modules/hapi/lib/handler.js:108:14)
at new module.exports.internals.Route (/app/node_modules/hapi/lib/route.js:60:37)
at Object.target [as register] (/app/node_modules/hapi/node_modules/joi/lib/object.js:77:34)
at internals.Connection._route (/app/node_modules/hapi/lib/connection.js:404:18)
at internals.Plugin._apply (/app/node_modules/hapi/lib/plugin.js:588:14)
at internals.Plugin.route (/app/node_modules/hapi/lib/plugin.js:558:10)
at Object.plugin.register (/app/server/plugins/pwa.js:7:10)
at each (/app/node_modules/hapi/lib/plugin.js:318:14)
at iterate (/app/node_modules/hapi/node_modules/items/lib/index.js:36:13)
at Promise (/app/node_modules/electrode-server/lib/electrode-server.js:118:14)
at Object.exports.serial (/app/node_modules/hapi/node_modules/items/lib/index.js:39:9)
at internals.Plugin.register (/app/node_modules/hapi/lib/plugin.js:321:11)
at Promise._execute (/app/node_modules/bluebird/js/release/debuggability.js:300:9)
at Promise._resolveFromExecutor (/app/node_modules/bluebird/js/release/promise.js:481:18)

Register plugins is taking a while - If this takes longer than 10 seconds, then
double check your plugins to make sure each one calls next() at the end.
Server will automatically abort after 20 seconds.

State changed from starting to crashed
Process exited with status 0

[johndevor]

Ok, closing my own issue.

heroku config:set STATIC_FILES_OFF=true

Caused the issue.