Applications created using the current "init templates" for TypeScript may fail building with the following error message:
node_modules/@types/node/index.d.ts:97:11 - error TS2300: Duplicate identifier 'IteratorResult'.
97 interface IteratorResult<T> { }
~~~~~~~~~~~~~~
node_modules/typescript/lib/lib.es2015.iterable.d.ts:41:6
41 type IteratorResult<T, TReturn = any> = IteratorYieldResult<T> | IteratorReturnResult<TReturn>;
~~~~~~~~~~~~~~
'IteratorResult' was also declared here.
node_modules/typescript/lib/lib.es2015.iterable.d.ts:41:6 - error TS2300: Duplicate identifier 'IteratorResult'.
41 type IteratorResult<T, TReturn = any> = IteratorYieldResult<T> | IteratorReturnResult<TReturn>;
~~~~~~~~~~~~~~
node_modules/@types/node/index.d.ts:97:11
97 interface IteratorResult<T> { }
~~~~~~~~~~~~~~
'IteratorResult' was also declared here.
This can be fixed by removing the @types/node
dependency declared in package.json
, or upgrading it from 8.10.45
to 8.10.52
, by running the following command:
$ npm install @types/node@8
+ @types/[email protected]
updated 1 package and audited 558 packages in 2.961s
found 0 vulnerabilities
Doesn't work for me, it still throws the same error as before.
This is my package.json file:
{
"name": "node-ts-app",
"version": "1.0.0",
"description": "",
"main": "src/server.ts",
"scripts": {
"start:dev": "nodemon --watch src/**/*.ts --exec ts-node src/server.ts",
"build": "tsc",
"lint": "eslint ./src/**/*.ts",
"db:clear": "ts-node dev-data/data/manage-dev-data.ts --delete",
"db:addAll": "ts-node dev-data/data/manage-dev-data.ts --import",
"prettier": "prettier --write ./src/**/*.ts"
},
"author": "",
"license": "ISC",
"dependencies": {
"cross-env": "^5.2.1",
"dotenv": "^8.1.0",
"express": "^4.17.1",
"lodash": "^4.17.15",
"mongoose": "^5.7.1",
"morgan": "^1.9.1"
},
"devDependencies": {
"@types/express": "^4.17.1",
"@types/lodash": "^4.14.138",
"@types/mongoose": "^5.5.17",
"@types/node": "^8.10.54",
"@typescript-eslint/eslint-plugin": "^2.3.0",
"@typescript-eslint/parser": "^2.3.0",
"eslint": "^6.4.0",
"nodemon": "^1.19.2",
"prettier": "^1.18.2",
"ts-node": "^8.4.1",
"typescript": "^3.6.3"
}
}
Most helpful comment
Doesn't work for me, it still throws the same error as before.
This is my package.json file: