Unexpected token

[cailven]

"C:\Program Files\JetBrains\WebStorm 2018.1.5\bin\runnerw.exe" "C:\Program Files\nodejs\node.exe" D:\xampp\htdocs\node_modules\gulp\bin\gulp.js --color --gulpfile D:\xampp\htdocs\skechers\web\gulpfile.js default
[20:28:06] Using gulpfile D:\xampp\htdocs\skechers\web\gulpfile.js
[20:28:06] Starting 'default'...
D:/xampp/htdocs/node_modules/@types/acorn/index.d.ts(240,8): error TS2693: 'Symbol' only refers to a type, but is being used as a value here.
D:/xampp/htdocs/node_modules/@types/acorn/index.d.ts(240,28): error TS2304: Cannot find name 'Iterator'.
(node:20248) UnhandledPromiseRejectionWarning: Error: TypeScript: Compilation failed
at Output.mightFinish (D:\xampp\htdocs\node_modules\gulp-typescript\release\output.js:130:43)
at applySourceMap.then.appliedSourceMap (D:\xampp\htdocs\node_modules\gulp-typescript\release\output.js:43:22)
at
at process._tickCallback (internal/process/next_tick.js:188:7)
(node:20248) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 2)
(node:20248) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.
TypeScript: 2 semantic errors
TypeScript: emit succeeded (with errors)

Process finished with exit code 0

[ivogabe]

Which versions of TypeScript, gulp-typescript and Node are you using? And can you share your gulpfile?

[cailven]

typescript Version 2.9.2
gulp-typescript:5.0.0-alpha.2
nodejs:v 8.11.3

gulpfile.js:

var gulp = require('gulp');
var ts = require('gulp-typescript');

gulp.task('default', function () {
return gulp.src('src/*.ts')
.pipe(ts({
noImplicitAny: true,
outFile: 'output.js'
}))
.pipe(gulp.dest('built/local'));
});

[ivogabe]

Looks like you need to set a newer lib file, as the Acorn typings require Symbol and Iterator. Could you try the following:

gulp.task('default', function () {
  return gulp.src('src/*.ts')
    .pipe(ts({
      noImplicitAny: true,
      outFile: 'output.js',
      lib: ["es2015", "dom"]
    }))
    .pipe(gulp.dest('built/local'));
});