Uncaught SyntaxError: Unexpected token export

[x] Bug
[ ] Build issue
[ ] Feature request

Version info

ng --version

Angular CLI: 8.3.4
Node: 10.15.0
OS: darwin x64
Angular: 8.2.6
... animations, common, compiler, compiler-cli, core, forms
... language-service, platform-browser, platform-browser-dynamic
... router

Package                            Version
------------------------------------------------------------
@angular-devkit/architect          0.803.4
@angular-devkit/build-angular      0.803.4
@angular-devkit/build-optimizer    0.803.4
@angular-devkit/build-webpack      0.803.4
@angular-devkit/core               8.3.4
@angular-devkit/schematics         8.3.4
@angular/cdk                       8.2.0
@angular/cli                       8.3.4
@angular/flex-layout               8.0.0-beta.27
@angular/http                      7.2.15
@angular/material                  8.2.0
@angular/material-moment-adapter   8.2.0
@ngtools/webpack                   8.3.4
@schematics/angular                8.3.4
@schematics/update                 0.803.4
rxjs                               6.5.3
typescript                         3.4.2
webpack                            4.40.2

package.json (dependencies & devDependencies)

"dependencies": {
  "@angular/animations": "^8.2.6",
  "@angular/cdk": "^8.2.0",
  "@angular/common": "^8.2.6",
  "@angular/compiler": "^8.2.6",
  "@angular/core": "^8.2.6",
  "@angular/flex-layout": "^8.0.0-beta.27",
  "@angular/forms": "^8.2.6",
  "@angular/http": "^7.2.15",
  "@angular/material": "^8.2.0",
  "@angular/material-moment-adapter": "^8.2.0",
  "@angular/platform-browser": "^8.2.6",
  "@angular/platform-browser-dynamic": "^8.2.6",
  "@angular/router": "^8.2.6",
  "@candidosales/material-time-picker": "^2.0.0",
  "@ngrx/effects": "^8.3.0",
  "@ngrx/router-store": "^8.3.0",
  "@ngrx/store": "^8.3.0",
  "@swimlane/ngx-charts": "^12.0.1",
  "bootstrap": "^4.3.1",
  "bowser": "^2.6.1",
  "chart.js": "^2.8.0",
  "cleave.js": "^1.5.3",
  "core-js": "^3.2.1",
  "countup.js-angular2": "^7.3.0",
  "d3": "^5.12.0",
  "font-awesome": "^4.7.0",
  "hammerjs": "^2.0.8",
  "highcharts": "^7.2.0",
  "lodash": "^4.17.15",
  "moment": "^2.24.0",
  "ng-html-util": "2.0.x",
  "ng2-nouislider": "1.5.2",
  "ngrx-store-freeze": "^0.2.4",
  "ngx-cleave-directive": "^1.1.3",
  "ngx-image-cropper": "^1.4.1",
  "nouislider": "^9.0.0",
  "oidc-client": "^1.9.1",
  "rxjs": "^6.5.3",
  "sweetalert2": "8.17.1",
  "terraformer-wkt-parser": "^1.2.0",
  "terser": "4.3.1",
  "tslib": "^1.10.0",
  "web-animations-js": "^2.3.2",
  "zone.js": "^0.10.2"
},
"devDependencies": {
  "@angular-devkit/build-angular": "^0.803.4",
  "@angular-devkit/schematics": "^8.3.4",
  "@angular/cli": "^8.3.4",
  "@angular/compiler-cli": "^8.2.6",
  "@angular/language-service": "^8.2.6",
  "@ngrx/schematics": "^8.3.0",
  "@ngrx/store-devtools": "^8.3.0",
  "@types/googlemaps": "^3.37.6",
  "@types/hammerjs": "^2.0.36",
  "@types/jasmine": "^3.4.0",
  "@types/jasminewd2": "~2.0.6",
  "@types/lodash": "^4.14.138",
  "@types/node": "^12.7.5",
  "codelyzer": "^5.1.0",
  "jasmine-core": "^3.4.0",
  "jasmine-spec-reporter": "^4.2.1",
  "karma": "^4.3.0",
  "karma-chrome-launcher": "^3.1.0",
  "karma-cli": "^2.0.0",
  "karma-coverage-istanbul-reporter": "^2.1.0",
  "karma-jasmine": "^2.0.1",
  "karma-jasmine-html-reporter": "^1.4.2",
  "protractor": "^5.4.2",
  "rxjs-tslint": "^0.1.7",
  "ts-node": "^8.3.0",
  "tslint": "^5.20.0",
  "typescript": "3.4.2",
  "webdriver-manager": "^12.1.6",
  "webpack": "^4.40.2"
}

Description

The last line of the CountUp.js library after bundled into “scripts.js” has this token export:

export { CountUp };

This error came after I upgraded all dependencies in the project including CountUp.js.

The serve and build commands don’t report any error and says the build is ok. It seems the functionality isn’t affected, it is only reported at runtime every time a reload the App while serving the project locally with ng serve, by the way this is almost the first output I get on the console.

I have checked-in the [x] Bug option but not sure of the implications, is only a syntax error after all.

I haven’t tried what happens in production and not sure if it is safe to go to production or if I go back to a previos version. Any suggestion?

[inorganik]

In case anyone runs into this error and finds this issue, here’s some info. It’s caused by ES6 modules… this package was using an es6 packaged version of CountUp.js. In the latest patch, v7.3.2, it imports from a UMD packaged version of CountUp.js which should resolve this error.

[Sparker73]

Oh excellent, it means that when I upgraded the dependency I kept doing that import the old way, my bad. Thanks for the tip, I will close this issue. The page has being evolving from some ugly face thing back in 2017 till now, I have learned a lot in the process. Have a good day and many many thanks for your help.