Vfrdtyky

I am having problem deploying angular-app to heroku.
I git is error which pushing to heroku using cli.
Its working on local enviorment when i do ng build --aot -prod on my local machine but when I try to push this on live server. This error occurs.
I tried a lot of different things but nothing seems to work.

Error Is something like this:

remote:        ERROR in ./src/styles.css

remote:        Module build failed: BrowserslistError: Unknown browser query `dead`

remote:            at /tmp/build_55b3f660ded0ff4e4370e6dae7789ca5/node_modules/browserslist/index.js:164:11

remote:            at Array.reduce (<anonymous>)

remote:            at resolve (/tmp/build_55b3f660ded0ff4e4370e6dae7789ca5/node_modules/browserslist/index.js:132:18)

remote:            at browserslist (/tmp/build_55b3f660ded0ff4e4370e6dae7789ca5/node_modules/browserslist/index.js:224:16)

remote:            at Browsers.parse (/tmp/build_55b3f660ded0ff4e4370e6dae7789ca5/node_modules/autoprefixer/lib/browsers.js:61:16)

remote:            at new Browsers (/tmp/build_55b3f660ded0ff4e4370e6dae7789ca5/node_modules/autoprefixer/lib/browsers.js:52:30)

remote:            at loadPrefixes (/tmp/build_55b3f660ded0ff4e4370e6dae7789ca5/node_modules/autoprefixer/lib/autoprefixer.js:70:24)

remote:            at plugin (/tmp/build_55b3f660ded0ff4e4370e6dae7789ca5/node_modules/autoprefixer/lib/autoprefixer.js:81:24)

remote:            at LazyResult.run (/tmp/build_55b3f660ded0ff4e4370e6dae7789ca5/node_modules/postcss/lib/lazy-result.js:277:20)

My package.json is this:

{

  "name": "frontend",

  "version": "0.0.0",

  "main": "app.js",

  "scripts": {

    "postinstall": "ng build --aot -prod",

    "start": "node server.js",

    "build": "ng build",

    "test": "ng test",

    "lint": "ng lint",

    "e2e": "ng e2e"

  },

  "engines": {

    "node": "8.12.0",

    "npm": "6.4.1"

  },

  "private": true,

  "dependencies": {

    "@angular/animations": "^4.2.4",

    "@angular/cli": "^1.4.9",

    "@angular/common": "^4.2.4",

    "@angular/compiler": "^4.2.4",

    "@angular/compiler-cli": "^4.4.6",

    "@angular/core": "^4.2.4",

    "@angular/forms": "^4.2.4",

    "@angular/http": "^4.2.4",

    "@angular/platform-browser": "^4.2.4",

    "@angular/platform-browser-dynamic": "^4.2.4",

    "@angular/router": "^4.2.4",

    "bootstrap": "^4.1.3",

    "core-js": "^2.4.1",

    "express": "^4.16.4",

    "path": "^0.12.7",

    "rxjs": "^6.3.3",

    "typescript": "~3.1.1",

    "zone.js": "~0.8.26"

  },

  "devDependencies": {

    "@angular/animations": "^4.2.4",

    "@angular/cli": "^1.4.9",

    "@angular/common": "^4.2.4",

    "@angular/compiler": "^4.2.4",

    "@angular/compiler-cli": "^4.4.6",

    "@angular-devkit/build-angular": "~0.10.0",

    "@angular/language-service": "~7.0.0",

    "@types/node": "~8.9.4",

    "@types/jasmine": "~2.8.8",

    "@types/jasminewd2": "~2.0.3",

    "codelyzer": "~4.5.0",

    "jasmine-core": "~2.99.1",

    "jasmine-spec-reporter": "~4.2.1",

    "karma": "~3.0.0",

    "karma-chrome-launcher": "~2.2.0",

    "karma-coverage-istanbul-reporter": "~2.0.1",

    "karma-jasmine": "~1.1.2",

    "karma-jasmine-html-reporter": "^0.2.2",

    "protractor": "~5.4.0",

    "ts-node": "~7.0.0",

    "tslint": "~5.11.0",

    "typescript": "~3.1.1"

  }

}