Why does Heroku fail to detect Node.js buildpack?

Question

I git cloned a Node.js application (the version specified in the package.json being 4.1.2 and that of my local machine being 6.2.2) an

Answer 1

I had similar issue, here are the steps which solved the problem.

heroku buildpacks:set heroku/nodejs
git push heroku master

Basically details are in the more info link -

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This situation may also occur if you remove or rename a file that previously led to the automatic detection of your application type and thus the automatic setting of the detected buildpack on your application.

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