title: JavaScript heap out of memory in Angular 7 using Azure DevOps
body: <p>I am getting <strong>FATAL ERROR: CALL_AND_RETRY_LAST Allocation failed - JavaScript heap out of memory</strong> after Angular 7.1 upgrade. The previous version 6.1 was working perfectly fine. </p>
  
  <p>I get the error only in Azure DevOps while running <code>ng build --prod</code> command. It builds perfectly fine in local.</p>
  
  <p>Below are the detail logs. Any idea why I am getting this error? </p>
  
  <pre><code>2018-11-22T06:40:36.2804965Z ##[section]Starting: npm build
  2018-11-22T06:40:36.2809301Z ==============================================================================
  2018-11-22T06:40:36.2809365Z Task         : npm
  2018-11-22T06:40:36.2809456Z Description  : Install and publish npm packages, or run an npm command. Supports npmjs.com and authenticated registries like Package Management.
  2018-11-22T06:40:36.2809496Z Version      : 1.0.27
  2018-11-22T06:40:36.2809531Z Author       : Microsoft Corporation
  2018-11-22T06:40:36.2809612Z Help         : [More Information](https://go.microsoft.com/fwlink/?LinkID=613746)
  2018-11-22T06:40:36.2809648Z ==============================================================================
  2018-11-22T06:40:36.7158800Z SYSTEMVSSCONNECTION exists true
  2018-11-22T06:40:36.8019327Z SYSTEMVSSCONNECTION exists true
  2018-11-22T06:40:36.8872807Z [command]C:\Windows\system32\cmd.exe /D /S /C ""C:\Program Files\nodejs\npm.cmd" --version"
  2018-11-22T06:40:37.5174051Z 6.4.1
  2018-11-22T06:40:38.9461529Z [command]C:\Windows\system32\cmd.exe /D /S /C ""C:\Program Files\nodejs\npm.cmd" config list"
  2018-11-22T06:40:39.5927698Z ; cli configs
  2018-11-22T06:40:39.5928553Z metrics-registry = "https://registry.npmjs.org/"
  2018-11-22T06:40:39.5929006Z scope = ""
  2018-11-22T06:40:39.5929176Z user-agent = "npm/6.4.1 node/v8.12.0 win32 x64"
  2018-11-22T06:40:39.5929292Z 
  2018-11-22T06:40:39.5929425Z ; environment configs
  2018-11-22T06:40:39.5929577Z cache = "C:\\npm\\cache"
  2018-11-22T06:40:39.5929756Z prefix = "C:\\npm\\prefix"
  2018-11-22T06:40:39.5929899Z userconfig = "D:\\a\\1\\npm\\17729.npmrc"
  2018-11-22T06:40:39.5930010Z 
  2018-11-22T06:40:39.5930159Z ; builtin config undefined
  2018-11-22T06:40:39.5930270Z 
  2018-11-22T06:40:39.5930403Z ; node bin location = C:\Program Files\nodejs\node.exe
  2018-11-22T06:40:39.5930552Z ; cwd = D:\a\1\s\client
  2018-11-22T06:40:39.5930686Z ; HOME = C:\Users\VssAdministrator
  2018-11-22T06:40:39.5930817Z ; "npm config ls -l" to show all defaults.
  2018-11-22T06:40:39.5930928Z 
  2018-11-22T06:40:39.5931996Z [command]C:\Windows\system32\cmd.exe /D /S /C ""C:\Program Files\nodejs\npm.cmd" run build"
  2018-11-22T07:33:30.0639548Z FATAL ERROR: CALL_AND_RETRY_LAST Allocation failed - JavaScript heap out of memory
  2018-11-22T07:33:30.0640628Z  1: node_module_register
  2018-11-22T07:33:30.0640676Z  2: v8::internal::FatalProcessOutOfMemory
  2018-11-22T07:33:30.0640710Z  3: v8::internal::FatalProcessOutOfMemory
  2018-11-22T07:33:30.0640744Z  4: v8::internal::Factory::NewRawTwoByteString
  2018-11-22T07:33:30.0640825Z  5: v8::internal::Smi::SmiPrint
  2018-11-22T07:33:30.0640861Z  6: v8::internal::StackGuard::HandleInterrupts
  2018-11-22T07:33:30.0640894Z  7: v8::internal::AsmJsScanner::IsNumberStart
  2018-11-22T07:33:30.0640967Z  8: 000002B496D043C1
  2018-11-22T07:33:30.0641001Z npm ERR! code ELIFECYCLE
  2018-11-22T07:33:30.0641034Z npm ERR! errno 3
  2018-11-22T07:33:30.0641210Z npm ERR! iceux@0.0.1 build: `ng build --prod`
  2018-11-22T07:33:30.0641470Z npm ERR! Exit status 3
  2018-11-22T07:33:30.0641528Z npm ERR! 
  2018-11-22T07:33:30.0641569Z npm ERR! Failed at the iceux@0.0.1 build script.
  2018-11-22T07:33:30.0641615Z npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
  2018-11-22T07:33:30.0641703Z 
  2018-11-22T07:33:30.0641749Z npm ERR! A complete log of this run can be found in:
  2018-11-22T07:33:30.0641795Z npm ERR!     C:\npm\cache\_logs\2018-11-22T07_33_30_018Z-debug.log
  2018-11-22T07:33:30.0641823Z 
  2018-11-22T07:33:30.0641910Z &gt; iceux@0.0.1 build D:\a\1\s\client
  2018-11-22T07:33:30.0641951Z &gt; ng build --prod
  2018-11-22T07:33:30.0641978Z 
  2018-11-22T07:33:30.1213960Z Found npm debug log, make sure the path matches with the one in npm's output: C:\npm\cache\_logs\2018-11-22T07_33_30_018Z-debug.log
  2018-11-22T07:33:30.1214046Z 0 info it worked if it ends with ok
  2018-11-22T07:33:30.1214104Z 1 verbose cli [ 'C:\\Program Files\\nodejs\\node.exe',
  2018-11-22T07:33:30.1214189Z 1 verbose cli   'C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js',
  2018-11-22T07:33:30.1215590Z 1 verbose cli   'run',
  2018-11-22T07:33:30.1215635Z 1 verbose cli   'build' ]
  2018-11-22T07:33:30.1215667Z 2 info using npm@6.4.1
  2018-11-22T07:33:30.1215727Z 3 info using node@v8.12.0
  2018-11-22T07:33:30.1215759Z 4 verbose run-script [ 'prebuild', 'build', 'postbuild' ]
  2018-11-22T07:33:30.1215801Z 5 info lifecycle iceux@0.0.1~prebuild: iceux@0.0.1
  2018-11-22T07:33:30.1215835Z 6 info lifecycle iceux@0.0.1~build: iceux@0.0.1
  2018-11-22T07:33:30.1216048Z 7 verbose lifecycle iceux@0.0.1~build: unsafe-perm in lifecycle true
  2018-11-22T07:33:30.1216372Z 8 verbose lifecycle iceux@0.0.1~build: PATH: C:\Program Files\nodejs\node_modules\npm\node_modules\npm-lifecycle\node-gyp-bin;D:\a\1\s\client\node_modules\.bin;C:\agents\2.141.1\externals\git\cmd;C:\tools\mingw64\bin;C:\Program Files\dotnet;C:\mysql-5.7.21-winx64\bin;C:\Program Files\Java\jdk1.8.0_181\bin;C:\npm\prefix;C:\hostedtoolcache\windows\Ruby\2.5.0\x64\bin;C:\Go1.11\bin;C:\Program Files\Git\bin;C:\Program Files\Git\usr\bin;C:\Program Files\Git\mingw64\bin;C:\Program Files (x86)\Microsoft SDKs\Azure\CLI2\wbin;C:\Program Files (x86)\Microsoft Visual Studio\Shared\Python36_64\Scripts;C:\Program Files (x86)\Microsoft Visual Studio\Shared\Python36_64;C:\Program Files\Microsoft MPI\Bin\;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\ProgramData\Chocolatey\bin;C:\Program Files\Docker;C:\Program Files\dotnet\;C:\Program Files\Microsoft SQL Server\130\Tools\Binn\;C:\Program Files (x86)\Microsoft SQL Server\110\DTS\Binn\;C:\Program Files (x86)\Microsoft SQL Server\120\DTS\Binn\;C:\Program Files (x86)\Microsoft SQL Server\130\DTS\Binn\;C:\Program Files (x86)\Microsoft SQL Server\140\DTS\Binn\;C:\Program Files\Microsoft Service Fabric\bin\Fabric\Fabric.Code;C:\Program Files\Microsoft SDKs\Service Fabric\Tools\ServiceFabricLocalClusterManager;C:\Program Files\Git\cmd;C:\Program Files (x86)\Subversion\bin;C:\Program Files\nodejs\;C:\Program Files\CMake\bin;C:\Users\VssAdministrator\AppData\Local\Microsoft\WindowsApps
  2018-11-22T07:33:30.1216877Z 9 verbose lifecycle iceux@0.0.1~build: CWD: D:\a\1\s\client
  2018-11-22T07:33:30.1216979Z 10 silly lifecycle iceux@0.0.1~build: Args: [ '/d /s /c', 'ng build --prod' ]
  2018-11-22T07:33:30.1217028Z 11 silly lifecycle iceux@0.0.1~build: Returned: code: 3  signal: null
  2018-11-22T07:33:30.1217062Z 12 info lifecycle iceux@0.0.1~build: Failed to exec build script
  2018-11-22T07:33:30.1217103Z 13 verbose stack Error: iceux@0.0.1 build: `ng build --prod`
  2018-11-22T07:33:30.1217135Z 13 verbose stack Exit status 3
  2018-11-22T07:33:30.1217173Z 13 verbose stack     at EventEmitter.&lt;anonymous&gt; (C:\Program Files\nodejs\node_modules\npm\node_modules\npm-lifecycle\index.js:301:16)
  2018-11-22T07:33:30.1217215Z 13 verbose stack     at emitTwo (events.js:126:13)
  2018-11-22T07:33:30.1217250Z 13 verbose stack     at EventEmitter.emit (events.js:214:7)
  2018-11-22T07:33:30.1217287Z 13 verbose stack     at ChildProcess.&lt;anonymous&gt; (C:\Program Files\nodejs\node_modules\npm\node_modules\npm-lifecycle\lib\spawn.js:55:14)
  2018-11-22T07:33:30.1217332Z 13 verbose stack     at emitTwo (events.js:126:13)
  2018-11-22T07:33:30.1217381Z 13 verbose stack     at ChildProcess.emit (events.js:214:7)
  2018-11-22T07:33:30.1217413Z 13 verbose stack     at maybeClose (internal/child_process.js:915:16)
  2018-11-22T07:33:30.1217448Z 13 verbose stack     at Process.ChildProcess._handle.onexit (internal/child_process.js:209:5)
  2018-11-22T07:33:30.1217488Z 14 verbose pkgid iceux@0.0.1
  2018-11-22T07:33:30.1217521Z 15 verbose cwd D:\a\1\s\client
  2018-11-22T07:33:30.1217551Z 16 verbose Windows_NT 10.0.14393
  2018-11-22T07:33:30.1217588Z 17 verbose argv "C:\\Program Files\\nodejs\\node.exe" "C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "run" "build"
  2018-11-22T07:33:30.1217629Z 18 verbose node v8.12.0
  2018-11-22T07:33:30.1217659Z 19 verbose npm  v6.4.1
  2018-11-22T07:33:30.1217690Z 20 error code ELIFECYCLE
  2018-11-22T07:33:30.1217727Z 21 error errno 3
  2018-11-22T07:33:30.1218070Z 22 error iceux@0.0.1 build: `ng build --prod`
  2018-11-22T07:33:30.1218102Z 22 error Exit status 3
  2018-11-22T07:33:30.1218134Z 23 error Failed at the iceux@0.0.1 build script.
  2018-11-22T07:33:30.1218187Z 23 error This is probably not a problem with npm. There is likely additional logging output above.
  2018-11-22T07:33:30.1218220Z 24 verbose exit [ 3, true ]
  2018-11-22T07:33:30.1218241Z 
  2018-11-22T07:33:30.1286371Z ##[error]Error: Npm failed with return code: 3
  2018-11-22T07:33:30.1298403Z ##[section]Finishing: npm build
  </code></pre>
  
  <p>Package.json</p>
  
  <pre><code>{
    "name": "iceux",
    "version": "0.0.1",
    "license": "MIT",
    "scripts": {
      "ng": "ng",
      "start": "ng serve --ssl true",
      "build": "ng build --prod",
      "test": "ng test",
      "testauto": "ng test --watch=false --browsers=ChromeHeadless --code-coverage",
      "lint": "ng lint iceux --format stylish",
      "pree2e": "webdriver-manager update",
      "e2e": "ng e2e --dev-server-target=iceux:serve",
      "e2e:fast": "ng e2e --configuration=fast",
      "e2e:azure": "ng e2e --configuration=azure",
      "e2e:perf": "ng e2e --configuration=perf"
    },
    "private": true,
    "dependencies": {
      "@angular/animations": "7.1.0",
      "@angular/common": "7.1.0",
      "@angular/compiler": "7.1.0",
      "@angular/core": "7.1.0",
      "@angular/forms": "7.1.0",
      "@angular/http": "7.1.0",
      "@angular/platform-browser": "7.1.0",
      "@angular/platform-browser-dynamic": "7.1.0",
      "@angular/router": "7.1.0",
      "@epicor/kinetic": "^2.1.0-alpha.20",
      "@ngrx/effects": "^6.1.0",
      "@ngrx/entity": "^6.1.0",
      "@ngrx/store": "^6.1.0",
      "@ngrx/store-devtools": "^6.1.0",
      "@progress/kendo-angular-inputs": "^3.1.3",
      "@progress/kendo-angular-intl": "^1.4.1",
      "@progress/kendo-angular-l10n": "^1.2.0",
      "@progress/kendo-angular-layout": "^3.1.1",
      "@progress/kendo-angular-menu": "^1.0.0",
      "@progress/kendo-angular-toolbar": "^0.2.1",
      "@progress/kendo-angular-treeview": "^2.2.0",
      "@progress/kendo-theme-default": "latest",
      "@telerik/kendo-intl": "^1.4.4",
      "angular2-query-builder": "^0.3.3",
      "core-js": "^2.5.5",
      "json-logic-js": "^1.2.2",
      "lodash": "^4.17.10",
      "logrocket": "^0.6.17",
      "rxjs": "^6.3.3",
      "rxjs-compat": "^6.0.0",
      "zone.js": "^0.8.26"
    },
    "devDependencies": {
      "@angular-devkit/build-angular": "~0.10.0",
      "@angular/cli": "7.0.6",
      "@angular/compiler-cli": "7.1.0",
      "@angular/language-service": "7.1.0",
      "@ngrx/schematics": "^6.1.0",
      "@types/jasmine": "^2.8.7",
      "@types/jasminewd2": "~2.0.2",
      "@types/lodash": "^4.14.108",
      "@types/node": "~8.9.4",
      "codelyzer": "^4.3.0",
      "jasmine-core": "~2.99.1",
      "jasmine-reporters": "^2.3.1",
      "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": "^5.4.1",
      "rxjs-tslint": "^0.1.5",
      "ts-node": "~7.0.0",
      "tslint": "~5.11.0",
      "typescript": "~3.1.6"
    }
  }
  </code></pre>