Heroku Build getting failed

Nobody has claimed this yet.

I have cloned the repo and linked with Heroku, But I'm getting the build error, Can someone help me on this? @crucialfelix @claym @jg123 @arnif @sankalpk

-----> 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): >=6.6.0
engines.npm (package.json): >=3.10.8
engines.yarn (package.json): unspecified (use default)

Resolving node version >=6.6.0...
Downloading and installing node 12.7.0...
Bootstrapping npm >=3.10.8 (replacing 6.10.0)...
npm >=3.10.8 installed
Resolving yarn version 1.x...
Downloading and installing yarn (1.17.3)...
Installed yarn 1.17.3

-----> Installing dependencies
Installing node modules (yarn.lock)
yarn install v1.17.3
[1/4] Resolving packages...
[2/4] Fetching packages...
info fsevents@1.1.1: The platform "linux" is incompatible with this module.
info "fsevents@1.1.1" is an optional dependency and failed compatibility check. Excluding it from installation.
[3/4] Linking dependencies...
warning " > react-mdl@1.11.0" has incorrect peer dependency "react@0.14.x || ^15.0.0-rc".
warning " > react-mdl@1.11.0" has incorrect peer dependency "react-dom@0.14.x || ^15.0.0-rc".
warning "react-relay > relay-runtime@1.4.1" has incorrect peer dependency "relay-compiler@1.4.1".
warning "react-router-relay > react-static-container@1.0.1" has incorrect peer dependency "react@^0.13.0 || ^0.14.0 || ^15.0.0".
[4/4] Building fresh packages...
Done in 47.99s.

-----> Build
Running heroku-postbuild (yarn)
yarn run v1.17.3
$ cross-env NODE_ENV=production webpack --config webpack.config.js && cross-env NODE_ENV=production ./node_modules/.bin/babel ./server --out-dir ./lib
Hash: b19942a7fb58fe42f49c
Version: webpack 3.8.1
Time: 28009ms
Asset Size Chunks Chunk Names
icons-cc4a24232900b36655174d837376d93c/apple-touch-icon-57x57.png 4.88 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/apple-touch-icon-72x72.png 6.73 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/apple-touch-icon-60x60.png 5.22 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/apple-touch-icon-120x120.png 12.5 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/apple-touch-icon-152x152.png 16.6 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/apple-touch-icon-144x144.png 15.6 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/apple-touch-icon-167x167.png 18.5 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/apple-touch-icon-180x180.png 20.4 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/apple-touch-icon-114x114.png 11.9 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/apple-touch-icon-precomposed.png 20.4 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/apple-touch-icon-76x76.png 7.11 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/apple-touch-icon.png 20.4 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/android-chrome-48x48.png 4.2 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/android-chrome-36x36.png 2.78 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/android-chrome-72x72.png 7.4 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/android-chrome-96x96.png 10.5 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/android-chrome-144x144.png 17.1 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/android-chrome-192x192.png 23.8 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/android-chrome-256x256.png 33.4 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/android-chrome-384x384.png 55.8 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/android-chrome-512x512.png 83.6 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/favicon-16x16.png 801 bytes [emitted]
icons-cc4a24232900b36655174d837376d93c/favicon-32x32.png 2.3 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/favicon-96x96.png 10.5 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/favicon-230x230.png 29.7 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/favicon.ico 33.3 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/apple-touch-startup-image-320x460.png 42 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/apple-touch-startup-image-640x920.png 113 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/apple-touch-startup-image-640x1096.png 114 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/apple-touch-startup-image-768x1004.png 148 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/apple-touch-startup-image-750x1294.png 145 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/apple-touch-startup-image-748x1024.png 135 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/apple-touch-startup-image-1182x2208.png 206 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/apple-touch-startup-image-1242x2148.png 313 kB [emitted] [big]
icons-cc4a24232900b36655174d837376d93c/apple-touch-startup-image-1496x2048.png 389 kB [emitted] [big]
icons-cc4a24232900b36655174d837376d93c/apple-touch-startup-image-1536x2008.png 428 kB [emitted] [big]
icons-cc4a24232900b36655174d837376d93c/firefox_app_60x60.png 6.63 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/firefox_app_128x128.png 17.6 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/firefox_app_512x512.png 99.1 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/manifest.json 1.22 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/manifest.webapp 258 bytes [emitted]
icons-cc4a24232900b36655174d837376d93c/.cache 7.49 kB [emitted]
assets/d206d2e2f1fdb8e4d9d7413d694a5e3b.png 38.7 kB [emitted]
assets/5e61d42f90dec92bff7469af6cfa9d0d.png 274 kB [emitted] [big]
assets/9fe7584b6d29bec74a66024829929697.png 16.4 kB [emitted]
assets/b8e28b87360ea89a0a480e0f3c6f7dbd.png 23.5 kB [emitted]
assets/05d6144b469f642bbdb658d00ac86ca4.png 31.6 kB [emitted]
assets/51639fae709b54583375e29c5b37cd35.png 3.42 kB [emitted]
assets/cc4a24232900b36655174d837376d93c.png 57 kB [emitted]
assets/ceb93e626a615170db0bdcafecdfa2bb.png 5.53 kB [emitted]
assets/52babf49fcfc71790b5dd4dfce8d69fb.png 11.5 kB [emitted]
assets/c7cf5a9ec08c90b691ec092ee8839c4a.png 54.5 kB [emitted]
assets/37fe8322b169ddbdeabf75930e886ac6.png 49 kB [emitted]
assets/92bf77d3b4b73653b20eae7b4ee7dccc.png 25.9 kB [emitted]
assets/4ddcd5c7b92b7d8071d31305e857c15d.png 54.7 kB [emitted]
app.js 268 kB 0 [emitted] [big] app
vendor.js 666 kB 1 [emitted] [big] vendor
index.html 4.91 kB [emitted]
[43] (webpack)/buildin/global.js 488 bytes {1} [built]
[208] (webpack)/buildin/module.js 495 bytes {1} [built]
[318] ./client/assets/yeoman.png 89 bytes {0} [built]
[319] multi ./client/index.js 28 bytes {0} [built]
[320] ./client/index.js 944 bytes {0} [built]
[335] ./client/root.js 931 bytes {0} [built]
[606] ./client/routes/Route.js 1.54 kB {0} [built]
[607] ./client/routes/ViewerQuery.js 819 bytes {0} [built]
[687] ./client/assets ^\.\/.*\.png$ 373 bytes {0} [built]
[688] ./client/assets/babel.png 89 bytes {0} [optional] [built]
[689] ./client/assets/css.png 89 bytes {0} [optional] [built]
[690] ./client/assets/express.png 89 bytes {0} [optional] [built]
[691] ./client/assets/graphql.png 89 bytes {0} [optional] [built]
[692] ./client/assets/html5.png 89 bytes {0} [optional] [built]
[702] multi react react-dom react-mdl react-relay react-router react-router-relay 88 bytes {1} [built]
+ 690 hidden modules

ERROR in ./client/components/Feature/AddFeatureMutation.js
Module not found: Error: Can't resolve './__generated__/AddFeatureMutation.graphql' in '/tmp/build_499e01a560b17122c64193c77e94e4e4/client/components/Feature'
@ ./client/components/Feature/AddFeatureMutation.js 11:11-64
@ ./client/components/Feature/AddFeatureComponent.js
@ ./client/components/Feature/FeatureComponent.js
@ ./client/components/Feature/FeatureContainer.js
@ ./client/routes/Route.js
@ ./client/root.js
@ ./client/index.js
@ multi ./client/index.js

ERROR in ./client/components/App/AppContainer.js
Module not found: Error: Can't resolve './__generated__/AppContainer_viewer.graphql' in '/tmp/build_499e01a560b17122c64193c77e94e4e4/client/components/App'
@ ./client/components/App/AppContainer.js 22:13-67
@ ./client/routes/Route.js
@ ./client/root.js
@ ./client/index.js
@ multi ./client/index.js

ERROR in ./client/components/Feature/FeatureContainer.js
Module not found: Error: Can't resolve './__generated__/FeatureContainer_viewer.graphql' in '/tmp/build_499e01a560b17122c64193c77e94e4e4/client/components/Feature'
@ ./client/components/Feature/FeatureContainer.js 18:13-71
@ ./client/routes/Route.js
@ ./client/root.js
@ ./client/index.js
@ multi ./client/index.js

ERROR in ./client/components/Footer/FooterContainer.js
Module not found: Error: Can't resolve './__generated__/FooterContainer_viewer.graphql' in '/tmp/build_499e01a560b17122c64193c77e94e4e4/client/components/Footer'
@ ./client/components/Footer/FooterContainer.js 18:13-70
@ ./client/components/App/AppContainer.js
@ ./client/routes/Route.js
@ ./client/root.js
@ ./client/index.js
@ multi ./client/index.js
Child html-webpack-plugin for "index.html":
1 asset
[0] ./node_modules/html-webpack-plugin/lib/loader.js!./client/index.html 4.63 kB {0} [built]
[2] (webpack)/buildin/global.js 488 bytes {0} [built]
[3] (webpack)/buildin/module.js 495 bytes {0} [built]
+ 1 hidden module
Child favicons-webpack-plugin for "iconstats-[hash].json":
Asset Size Chunks Chunk Names
icons-cc4a24232900b36655174d837376d93c/apple-touch-icon-57x57.png 4.88 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/apple-touch-icon-72x72.png 6.73 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/apple-touch-icon-60x60.png 5.22 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/apple-touch-icon-120x120.png 12.5 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/apple-touch-icon-152x152.png 16.6 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/apple-touch-icon-144x144.png 15.6 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/apple-touch-icon-167x167.png 18.5 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/apple-touch-icon-180x180.png 20.4 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/apple-touch-icon-114x114.png 11.9 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/apple-touch-icon-precomposed.png 20.4 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/apple-touch-icon-76x76.png 7.11 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/apple-touch-icon.png 20.4 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/android-chrome-48x48.png 4.2 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/android-chrome-36x36.png 2.78 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/android-chrome-72x72.png 7.4 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/android-chrome-96x96.png 10.5 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/android-chrome-144x144.png 17.1 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/android-chrome-192x192.png 23.8 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/android-chrome-256x256.png 33.4 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/android-chrome-384x384.png 55.8 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/android-chrome-512x512.png 83.6 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/favicon-16x16.png 801 bytes [emitted]
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icons-cc4a24232900b36655174d837376d93c/favicon-96x96.png 10.5 kB [emitted]
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icons-cc4a24232900b36655174d837376d93c/favicon.ico 33.3 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/apple-touch-startup-image-320x460.png 42 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/apple-touch-startup-image-640x920.png 113 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/apple-touch-startup-image-640x1096.png 114 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/apple-touch-startup-image-768x1004.png 148 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/apple-touch-startup-image-750x1294.png 145 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/apple-touch-startup-image-748x1024.png 135 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/apple-touch-startup-image-1182x2208.png 206 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/apple-touch-startup-image-1242x2148.png 313 kB [emitted] [big]
icons-cc4a24232900b36655174d837376d93c/apple-touch-startup-image-1496x2048.png 389 kB [emitted] [big]
icons-cc4a24232900b36655174d837376d93c/apple-touch-startup-image-1536x2008.png 428 kB [emitted] [big]
icons-cc4a24232900b36655174d837376d93c/firefox_app_60x60.png 6.63 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/firefox_app_128x128.png 17.6 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/firefox_app_512x512.png 99.1 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/manifest.json 1.22 kB [emitted]
icons-cc4a24232900b36655174d837376d93c/manifest.webapp 258 bytes [emitted]
icons-cc4a24232900b36655174d837376d93c/.cache 7.49 kB [emitted]
+ 1 hidden asset
[0] ./node_modules/favicons-webpack-plugin/lib/favicons.js?{"outputFilePrefix":"icons-[hash]/","icons":{"android":true,"appleIcon":true,"appleStartup":true,"coast":false,"favicons":true,"firefox":true,"opengraph":false,"twitter":false,"yandex":false,"windows":false},"background":"#fff","persistentCache":true,"appName":"relay-fullstack"}!./client/assets/logo.png 7.38 kB {0} [built]
error Command failed with exit code 2.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.
-----> 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:

- Dangerous semver range (>) in engines.node
https://devcenter.heroku.com/articles/nodejs-support#specifying-a-node-js-version

Love,
Heroku

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

Start with the Heroku postbuild command in package.json and inspect the client files named in the build trace: client/components/Feature/AddFeatureMutation.js, client/components/App/AppContainer.js, and client/components/Feature/FeatureContainer.js. Reproduce the webpack build and determine why their referenced generated GraphQL files are unavailable; done means the Heroku build completes successfully.

Written by the indexing model from the issue text.