JavaScript heap out of memory in angular js gulp s

Question

I am using es6 syntax in my angular JS project but it throws error when run gulp build, search over github and So but some saying this is error due to gulp uglify while some say this is babel issue and other say ng-annonate issue.

ubuntu 14.04

node -v : 8.4.0

npm -v : 5.3.0

babel --version : 6.26.0 (babel-core 6.26.0)

package.json

{
  "name": "Project",
  "version": "0.0.0",
  "dependencies": {
    "gulp-open": "^2.0.0"
  },
  "scripts": {
    "test": "gulp test"
  },
  "devDependencies": {
    "babel": "^6.23.0",
    "babel-core": "^6.25.0",
    "babel-preset-es2015": "^6.24.1",
    "browser-sync": "~2.9.11",
    "browser-sync-spa": "~1.0.3",
    "chalk": "~1.1.1",
    "del": "~2.0.2",
    "eslint-plugin-angular": "~0.12.0",
    "estraverse": "~4.1.0",
    "gulp": "~3.9.0",
    "gulp-angular-filesort": "~1.1.1",
    "gulp-angular-templatecache": "~1.8.0",
    "gulp-autoprefixer": "~3.0.2",
    "gulp-babel": "^7.0.0",
    "gulp-clean-css": "~2.0.12",
    "gulp-connect": "^5.0.0",
    "gulp-eslint": "~1.0.0",
    "gulp-filter": "~3.0.1",
    "gulp-flatten": "~0.2.0",
    "gulp-html-replace": "^1.6.1",
    "gulp-htmlmin": "~2.0.0",
    "gulp-inject": "~3.0.0",
    "gulp-less": "~3.0.3",
    "gulp-livereload": "^3.8.1",
    "gulp-load-plugins": "~0.10.0",
    "gulp-merge": "^0.1.1",
    "gulp-ng-annotate": "~1.1.0",
    "gulp-ng-config": "^1.3.1",
    "gulp-nginxer": "^1.0.0",
    "gulp-order": "^1.1.1",
    "gulp-protractor": "~1.0.0",
    "gulp-rename": "~1.2.2",
    "gulp-replace": "~0.5.4",
    "gulp-rev": "~6.0.1",
    "gulp-rev-replace": "~0.4.2",
    "gulp-size": "~2.0.0",
    "gulp-sourcemaps": "~1.6.0",
    "gulp-uglify": "~1.4.1",
    "gulp-useref": "~1.3.0",
    "gulp-util": "~3.0.6",
    "gulp-war": "^0.1.4",
    "gulp-zip": "^3.2.0",
    "gulp.spritesmith": "^6.3.0",
    "http-proxy-middleware": "~0.9.0",
    "klaw-sync": "^1.1.2",
    "lodash": "~4.0.0",
    "main-bower-files": "~2.9.0",
    "merge-stream": "^1.0.1",
    "path": "^0.12.7",
    "phantomjs": "~1.9.18",
    "uglify-save-license": "~0.4.1",
    "wiredep": "~2.2.2"
  },
  "engines": {
    "node": ">=0.10.0"
  }
}

gulp/.babelrc

{
    "presets": ["es2015"],
    "plugins": ["syntax-decorators", "ng-annotate"] // this line is added after seeking for solution
}

gulp/build.js relevant code

.pipe(jsFilter)
    .pipe($.sourcemaps.init())
    .pipe($.babel({"presets": [ ["es2015", { "modules": false} ] ], compact: false}))
    .pipe($.ngAnnotate())
    .pipe($.uglify({
      preserveComments: $.uglifySaveLicense
    })).on('error', conf.errorHandler('Uglify'))
    .pipe($.sourcemaps.write('.'))
    .pipe(jsFilter.restore)

also tried .pipe(uglify({compress: {sequences: false, join_vars: false}})) as per this solution . but does not help

here is the log when execute gulp build

<--- Last few GCs --->

[15435:0x303a4b0]   401581 ms: Mark-sweep 1399.9 (1459.1) -> 1399.9 (1459.1) MB, 3617.4 / 0.0 ms  allocation failure GC in old space requested [15435:0x303a4b0]   405886 ms: Mark-sweep 1399.9 (1459.1) ->
1399.9 (1459.1) MB, 4101.3 / 0.0 ms  allocation failure GC in old space requested [15435:0x303a4b0]   409592 ms: Mark-sweep 1399.9 (1459.1) -> 1399.9 (1459.1) MB, 3705.3 / 0.0 ms  last resort  [15435:0x303a4b0]   413501 ms: Mark-sweep 1399.9 (1459.1) -> 1399.9 (1459.1) MB, 3908.9 / 0.0 ms  last resort 


<--- JS stacktrace --->

==== JS stack trace =========================================

Security context: 0x1d10fec9cef1 <JSObject>
    1: /* anonymous */ [/opt/project/path/node_modules/vinyl-sourcemaps-apply/node_modules/source-map/lib/source-map/source-map-generator.js:~52] [pc=0x355474d0ca02](this=0xc4a489090d9 <JSGlobal Object>,mapping=0xbf1d8defe31 <Object map = 0xa04f5db0ae9>)
    2: arguments adaptor frame: 3->1
    3: forEach(this=0x11ebaae17be9 <JSArray[466526]>)
    5: SourceMapConsumer_ea...

FATAL ERROR: CALL_AND_RETRY_LAST Allocation failed - JavaScript heap out of memory  1: node::Abort() [gulp]  2: 0x128fdfc [gulp]  3: v8::Utils::ReportOOMFailure(char const*, bool) [gulp]  4: v8::internal::V8::FatalProcessOutOfMemory(char const*, bool) [gulp]  5: v8::internal::Factory::NewFillerObject(int, bool, v8::internal::AllocationSpace) [gulp]  6: v8::internal::Runtime_AllocateInTargetSpace(int, v8::internal::Object**, v8::internal::Isolate*) [gulp]  7: 0x3554749840dd Aborted

Answer 1

I after struggling for a while i managed to fixed this issue by replacing all ^ by ~ from the all the dependencies in package.json file.

Replace

  "dependencies": {
     "@agm/core": "^1.0.0-beta.5",
    "@angular/animations": "^7.2.0",
    "@angular/common": "^7.2.0",
    "@angular/compiler": "^7.2.0",
    "@angular/core": "^7.2.0",
    "@angular/forms": "^7.2.0",
    ...

  },

To

  "dependencies": {
     "@agm/core": "~1.0.0-beta.5",
    "@angular/animations": "~7.2.0",
    "@angular/common": "~7.2.0",
    "@angular/compiler": "~7.2.0",
    "@angular/core": "~7.2.0",
    "@angular/forms": "~7.2.0",
    ...

  },

I think this issue is because of conflict between different version of libraries.

Answer 2

The main cause was uglify plugin which does not work with es6 syntax so did this

1. npm install babel-cli -g

2. bower install gulp-uglify-es --save-dev

3. add plugin and update code in gulp/build.js

var uglify = require('gulp-uglify-es').default;

and wrire belowcinside gulp task

 .pipe($.sourcemaps.init())
    .pipe($.babel({"presets": [ ["es2015", { "modules": false} ] ], compact: false}))
    .pipe($.ngAnnotate())
    .pipe(uglify()).on('error', conf.errorHandler('Uglify'))
    .pipe($.sourcemaps.write('.'))

update package.json

{
  "name": "Project",
  "version": "0.0.0",
  "dependencies": {
    "gulp-open": "^2.0.0"
  },
  "scripts": {
    "test": "gulp test"
  },
  "devDependencies": {
    "babel": "^6.23.0",
    "babel-core": "^6.25.0",
    "babel-preset-es2015": "^6.24.1",
    "babel-preset-minify": "^0.2.0",
    "chalk": "~1.1.1",
    "del": "~2.0.2",
    "eslint-plugin-angular": "~0.12.0",
    "estraverse": "~4.1.0",
    "gulp": "~3.9.0",
    "gulp-angular-filesort": "~1.1.1",
    "gulp-angular-templatecache": "~1.8.0",
    "gulp-autoprefixer": "~3.0.2",
    "gulp-babel": "^7.0.0",
    "gulp-babel-minify": "^0.2.0",
    "gulp-clean-css": "~2.0.12",
    "gulp-connect": "^5.0.0",
    "gulp-eslint": "~1.0.0",
    "gulp-filter": "~3.0.1",
    "gulp-flatten": "~0.2.0",
    "gulp-html-replace": "^1.6.1",
    "gulp-htmlmin": "~2.0.0",
    "gulp-inject": "~3.0.0",
    "gulp-less": "~3.0.3",
    "gulp-livereload": "^3.8.1",
    "gulp-load-plugins": "~0.10.0",
    "gulp-merge": "^0.1.1",
    "gulp-ng-annotate": "~1.1.0",
    "gulp-ng-config": "^1.3.1",
    "gulp-order": "^1.1.1",
    "gulp-protractor": "~1.0.0",
    "gulp-rename": "~1.2.2",
    "gulp-replace": "~0.5.4",
    "gulp-rev": "~6.0.1",
    "gulp-rev-replace": "~0.4.2",
    "gulp-size": "~2.0.0",
    "gulp-sourcemaps": "~1.6.0",
    "gulp-uglify": "~1.4.1",
    "gulp-uglify-es": "^0.1.3",
    "gulp-useref": "~1.3.0",
    "gulp-util": "~3.0.6",
    "gulp-war": "^0.1.4",
    "gulp-zip": "^3.2.0",
    "gulp.spritesmith": "^6.3.0",
    "http-proxy-middleware": "~0.9.0",
    "klaw-sync": "^1.1.2",
    "lodash": "~4.0.0",
    "main-bower-files": "~2.9.0",
    "merge-stream": "^1.0.1",
    "path": "^0.12.7",
    "phantomjs": "~1.9.18",
    "uglify-es": "^3.0.28",
    "uglify-save-license": "~0.4.1",
    "wiredep": "~2.2.2"
  },
  "engines": {
    "node": ">=0.10.0"
  }
}

Answer 3

It could simply be because your app needs a lot of memory to be built; node.js has a hard 1.4Gb limit for memory allocations. See this question on how to increase this limit. Let us know if this helps!