Duplicate identifier 'Element' error in TypeScript

Question

I'm constantly getting this error even though I excluded node_modules directory in tsconfig.json, and included directory where all TypeScript files are located:

{
    "compilerOptions": {
        "module": "system",
        "noImplicitAny": true,
        "removeComments": true,
        "preserveConstEnums": true,
        "sourceMap": true
    },
    "include": [
        "src/ts/*.ts"
    ],
    "exclude": [
        "node_modules",
        "**/*.spec.ts"
    ]
}

This is my Gulpfile:

const gulp = require('gulp');
const sass = require('gulp-sass');
const ts = require('gulp-typescript');
const tsProject = ts.createProject('tsconfig.json');

const tasks = {
    css: () => {
        return gulp.src('./src/scss/*.scss')
            .pipe(sass().on('error', sass.logError))
            .pipe(gulp.dest('./dist/css'));
    },
    js: () => {
        return tsProject.src()
            .pipe(tsProject())
            .js.pipe(gulp.dest('./dist/js/'));
    }
};

gulp.task('js', () => {
  tasks.js();
});

gulp.task('css', () => {
  tasks.css();
});

This is the error trace:

$ gulp js
[22:37:05] Using gulpfile ~/Development/proj/gulpfile.js
[22:37:05] Starting 'js'...
[22:37:05] Finished 'js' after 29 ms
/Users/apple/Development/proj/node_modules/typescript/lib/lib.d.ts(7617,11): error TS2300: Duplicate identifier 'Element'.
/Users/apple/Development/proj/node_modules/typescript/lib/lib.d.ts(7716,13): error TS2300: Duplicate identifier 'Element'.
src/ts/main.ts(1,7): error TS2300: Duplicate identifier 'Element'.
[22:37:07] TypeScript: 3 semantic errors
[22:37:07] TypeScript: emit succeeded (with errors)
Done in 3.76s.

Nikola Stojaković · Accepted Answer · 2017-07-30 10:41:46Z

1

It works now after I changed the name of Element class to Elem in my main.ts - looks like Element is reserved name.

answered Jul 30, 2017 at 10:41

Nikola Stojaković

2,3056 gold badges29 silver badges54 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

Duplicate identifier 'Element' error in TypeScript

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related