NodeJS App Deployment Error in Heroku via Github Push

Question

I am trying to deploy my app in Heroku server to be available in my customized domain name. Everything builds locally, but When I try to deploy in Heroku, the following error pops up. Please help.

This is my build log:

        -----> Node.js app detected

     -----> Creating runtime environment

   NPM_CONFIG_LOGLEVEL=error
   NODE_ENV=production
   NODE_MODULES_CACHE=true
   NODE_VERBOSE=false

    -----> Installing binaries
   engines.node (package.json):  unspecified
   engines.npm (package.json):   unspecified (use default)

   Resolving node version 12.x...
   Downloading and installing node 12.16.3...
   Using default npm version: 6.14.4

    -----> Restoring cache
   Cached directories were not restored due to a change in version of node, npm, yarn or stack
   Module installation may take longer for this build

   -----> Installing dependencies
   Installing node modules
   npm ERR! code EINVALIDTAGNAME
   npm ERR! Invalid tag name "[object Object]": Tags may not have any characters that encodeURIComponent encodes.

   npm ERR! A complete log of this run can be found in:
   npm ERR!     /tmp/npmcache.vvKxN/_logs/2020-05-23T20_24_41_347Z-debug.log
   -----> Build failed

   We're sorry-this build is failing! You can troubleshoot common issues here:
   https://devcenter.heroku.com/articles/troubleshooting-node-deploys

   Some possible problems:

   - Node version not specified in package.json
     https://devcenter.heroku.com/articles/nodejs-support#specifying-a-node-js-version

   Love,
   Heroku

! Push rejected, failed to compile Node.js app. ! Push failed

Could you post the full log as indicated in the error message? — Cornel Verster
– Cornel Verster, Commented May 23, 2020 at 20:38

Ankush Verma · Accepted Answer · 2020-05-24 06:13:13Z

1

As the error says, you have not mentioned npm and node version in the package.json file.

"engines": {
    "npm": "x",
    "node": "y"
}

replace x and y with your version of npm and node. node -v and npm -v would provide you with your versions.

answered May 24, 2020 at 6:13

Ankush Verma

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marko-36 · Accepted Answer · 2020-06-05 09:33:19Z

1

You have possible problem 'Node version not specified in package.json'. You need to describe what version of node and npm or yarn you have using.

Why is my Node.js build failing because of an invalid semver requirement? might help.

edited Jun 5, 2020 at 9:33

marko-36

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answered Jun 3, 2020 at 3:32

Azmi Fizal

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