unable to compile assets in production with npm run production - laravel

Question

npm run production doesn't run successfully. I have tried to remove the node_modules folder and run npm install but nothing still.
I have also tried to uninstall and install npm from the system but I still am having the same issue.
But watch is running fine but not production.
production script does:
"production": "cross-env NODE_ENV=production node_modules/webpack/bin/webpack.js --no-progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js",
I am using npm version 6.7.0 and nodejs version 8.11.4
The script consoles the following error in the npm error log:
0 info it worked if it ends with ok
1 verbose cli [ '/usr/bin/node', '/usr/local/bin/npm', 'run', 'prod' ]
2 info using npm#6.7.0
3 info using node#v8.11.4
4 verbose run-script [ 'preprod', 'prod', 'postprod' ]
5 info lifecycle #~preprod: #
6 info lifecycle #~prod: #
7 verbose lifecycle #~prod: unsafe-perm in lifecycle true
8 verbose lifecycle #~prod: PATH: /usr/local/lib/node_modules/npm/node_modules/npm-lifecycle/node-gyp-bin:/var/www/html/****/node_modules/.bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games
9 verbose lifecycle #~prod: CWD: /var/www/html/****
10 silly lifecycle #~prod: Args: [ '-c', 'npm run production' ]
11 silly lifecycle #~prod: Returned: code: 1 signal: null
12 info lifecycle #~prod: Failed to exec prod script
13 verbose stack Error: # prod: npm run production
13 verbose stack Exit status 1
13 verbose stack at EventEmitter.<anonymous> (/usr/local/lib/node_modules/npm/node_modules/npm-lifecycle/index.js:301:16)
13 verbose stack at emitTwo (events.js:126:13)
13 verbose stack at EventEmitter.emit (events.js:214:7)
13 verbose stack at ChildProcess.<anonymous> (/usr/local/lib/node_modules/npm/node_modules/npm-lifecycle/lib/spawn.js:55:14)
13 verbose stack at emitTwo (events.js:126:13)
13 verbose stack at ChildProcess.emit (events.js:214:7)
13 verbose stack at maybeClose (internal/child_process.js:925:16)
13 verbose stack at Process.ChildProcess._handle.onexit (internal/child_process.js:209:5)
14 verbose pkgid #
15 verbose cwd /var/www/html/****
16 verbose Linux 4.18.0-11-generic
17 verbose argv "/usr/bin/node" "/usr/local/bin/npm" "run" "prod"
18 verbose node v8.11.4
19 verbose npm v6.7.0
20 error code ELIFECYCLE
21 error errno 1
22 error # prod: npm run production
22 error Exit status 1
23 error Failed at the # prod script.
23 error This is probably not a problem with npm. There is likely additional logging output above.
24 verbose exit [ 1, true ]

Answer 1

I had same issue because I used to put MIX_SENTRY_DSN_PUBLIC in webpack like this (NOT WORKING):
mix.js('resources/js/app.js', process.env.MIX_SENTRY_DSN_PUBLIC/'public/js')
.sass('resources/sass/app.scss', process.env.MIX_SENTRY_DSN_PUBLIC/'public/css');
instead of:
mix.js('resources/js/app.js', 'public/js')
.sass('resources/sass/app.scss', 'public/css');