webpack - Unable to deploy rails 5.1.0.beta1 app on heroku -


i new webpacks. started working rails 5.1.0beta1 version comes webpack support. deploying on heroku fails following error during asset compilation

remote:        sh: 1: ./node_modules/webpack/bin/webpack.js: not found remote:        rake aborted! remote:        json::parsererror: 743: unexpected token @ ''

can please suggest how fix it. have tried doing this:

heroku buildpacks:set heroku/nodejs --index 1 heroku buildpacks:set heroku/ruby --index 2


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