Herokuで「デプロイ」すると拒否されてしまいます。

Question

Herokuで「デプロイ」しようとし、このようなコマンドを打つとこんなエラーが出ます。

push コマンド

git push heroku master

エラー内容

Counting objects: 45, done.
Compressing objects: 100% (25/25), done.
Writing objects: 100% (45/45), 9.06 KiB | 0 bytes/s, done.
Total 45 (delta 20), reused 36 (delta 18)
remote: Compressing source files... done.
remote: Building source:
remote: 
remote: -----> Node.js app detected
remote: 
remote: -----> Creating runtime environment
remote:        
remote:        NPM_CONFIG_LOGLEVEL=error
remote:        NPM_CONFIG_PRODUCTION=true
remote:        NODE_VERBOSE=false
remote:        NODE_ENV=production
remote:        NODE_MODULES_CACHE=true
remote: 
remote: -----> Installing binaries
remote:        engines.node (package.json):  4.2.3
remote:        engines.npm (package.json):   unspecified (use default)
remote:        
remote:        Resolving node version 4.2.3...
remote:        Downloading and installing node 4.2.3...
remote:        Detected package-lock.json: defaulting npm to version 5.x.x
remote:        Bootstrapping npm 5.x.x (replacing 2.14.7)...
remote: ERROR: npm is known not to run on Node.js v4.2.3
remote: Node.js 4 is supported but the specific version you're running has
remote: a bug known to break npm. Please update to at least 4.7.0 to use this
remote: version of npm. You can find the latest release of Node.js at https://nodejs.org/
remote:        npm  installed
remote: ERROR: npm is known not to run on Node.js v4.2.3
remote: Node.js 4 is supported but the specific version you're running has
remote: a bug known to break npm. Please update to at least 4.7.0 to use this
remote: version of npm. You can find the latest release of Node.js at https://nodejs.org/
remote: ERROR: npm is known not to run on Node.js v4.2.3
remote: Node.js 4 is supported but the specific version you're running has
remote: a bug known to break npm. Please update to at least 4.7.0 to use this
remote: version of npm. You can find the latest release of Node.js at https://nodejs.org/
remote: /app/tmp/buildpacks/19862b8792e84bd8421ded4660b92dfd1c41d92e19ac0b38c90301adc8ae3e0bd512fa01998af18fc2f0d31a157e9c82e8fdceba1a05e5d29adb8dc2bfaf08e1/lib/failure.sh: line 296: [: : integer expression expected
remote: 
remote: -----> Restoring cache
remote:        Skipping cache restore (not-found)
remote: 
remote: -----> Building dependencies
remote:        Installing node modules (package.json + package-lock)
remote:        ERROR: npm is known not to run on Node.js v4.2.3
remote:        Node.js 4 is supported but the specific version you're running has
remote:        a bug known to break npm. Please update to at least 4.7.0 to use this
remote:        version of npm. You can find the latest release of Node.js at https://nodejs.org/
remote: 
remote: -----> Build failed
remote:        
remote:        We're sorry this build is failing! You can troubleshoot common issues here:
remote:        https://devcenter.heroku.com/articles/troubleshooting-node-deploys
remote:        
remote:        If you're stuck, please submit a ticket so we can help:
remote:        https://help.heroku.com/
remote:        
remote:        Love,
remote:        Heroku
remote:        
remote:  !     Push rejected, failed to compile Node.js app.
remote: 
remote:  !     Push failed
remote: Verifying deploy...
remote: 
remote: !	Push rejected to immense-refuge-84970.
remote: 
To https://git.heroku.com/immense-refuge-84970.git
 ! [remote rejected] master -> master (pre-receive hook declined)
error: failed to push some refs to 'https://git.heroku.com/immense-refuge-84970.git'

一体、このエラーはどういうことなのででょうか？

Comments

[shimitei]

書かれている3行のエラー内容の直前あたりにエラーの原因が出力されているはずです。もう少し前の部分までエラー内容を追記して下さい。

[dog57]

追記しました！

[shimitei]

Node.jsアプリのBuild failedでは全部見ないとわからないですね。--> Node.js app detected以降から見せてもらえますか？

[dog57]

遅れましたが、追記致しました。

Answer 1

package.jsonに記述しておくと、Herokuで特定バージョンのNode.js、npmを使うように指定できます。
おそらく次のようにNode.js v4.2.3を指定、npmは無指定にしていると思います。

"engines": {
    "node": "4.2.3"
}

npmのバージョンが指定されていないため、Herokuではデフォルトのバージョン（npm 5.x.x）が使われます。

remote: ERROR: npm is known not to run on Node.js v4.2.3

remote: Node.js 4 is supported but the specific version you're running has
remote: a bug known to break npm. Please update to at least 4.7.0 to use this
remote: version of npm. You can find the latest release of Node.js at https://nodejs.org/

ただし、Node.js v4.2.3のバージョンは既知のバグがあってnpmの動作に問題があるようです。
ログにはNode.jsをv4.7.0以上にするように書かれています。