webpack TS2304 Cannot find name 'Map', 'Set', 'Promise'
I have the following webpack.config.js
var path = require("path");
var webpack = require('webpack');
module.exports = {
entry: {
'ng2-auto-complete': path.join(__dirname, 'src', 'index.ts')
},
resolve: {
extensions: ['', '.ts', '.js', '.json', '.css', '.html']
},
output: {
path: path.join(__dirname, 'dist'),
filename: "[name].umd.js",
library: ["[name]"],
libraryTarget: "umd"
},
externals: [
/^rxjs\//, //.... any other way? rx.umd.min.js does work?
/^@angular\//
],
devtool: 'source-map',
module: {
loaders: [
{ // Support for .ts files.
test: /\.ts$/,
loaders: ['ts', 'angular2-template-loader'],
exclude: [/test/, /node_modules\/(?!(ng2-.+))/]
}
]
}
};
and the following tsconfig.json
{
"compilerOptions": {
"target": "es5",
"module": "commonjs",
"moduleResolution": "node",
"noEmitHelpers": false,
"emitDecoratorMetadata": true,
"experimentalDecorators": true,
"sourceMap": true,
"pretty": true,
"allowUnreachableCode": true,
"allowUnusedLabels": true,
"noImplicitAny": false,
"noImplicitReturns": false,
"noImplicitUseStrict": false,
"noFallthroughCasesInSwitch": false,
"allowSyntheticDefaultImports": true,
"suppressExcessPropertyErrors": true,
"suppressImplicitAnyIndexErrors": true,
"outDir": "dist",
"baseUrl": "src"
},
"files": [
"src/index.ts"
],
"exclude": [
"node_modules"
],
"compileOnSave": false,
"buildOnSave": false
}
When I run tsc
command as the following, it all works fine.
ng2-auto-complete (master)$ tsc --declaration
ng2-auto-complete (master)$
When I run webpack
command, it shows typescript compile errors.
ng2-auto-complete (master)$ webpack
ts-loader: Using [email protected] and /Users/allen/github/ng2-auto-complete/tsconfig.json
Hash: bd6c50e4b9732c3ffa9d
Version: webpack 1.13.2
Time: 5041ms
Asset Size Chunks Chunk Names
ng2-auto-complete.umd.js 24.4 kB 0 [emitted] ng2-auto-complete
ng2-auto-complete.umd.js.map 28.4 kB 0 [emitted] ng2-auto-complete
+ 11 hidden modules
ERROR in /Users/allen/github/ng2-auto-complete/node_modules/@angular/platform-browser/src/dom/dom_renderer.d.ts
(18,37): error TS2304: Cannot find name 'Map'.
ERROR in /Users/allen/github/ng2-auto-complete/node_modules/@angular/platform-browser/src/dom/dom_adapter.d.ts
(96,42): error TS2304: Cannot find name 'Map'.
ERROR in /Users/allen/github/ng2-auto-complete/node_modules/@angular/platform-browser/src/web_workers/worker/location_providers.d.ts
(21,86): error TS2304: Cannot find name 'Promise'.
...
ng2-auto-complete (master)$
I don't know what I am missing for webpack and typescript compilation.
node_modules
has been excluded in tsconfig.json
"exclude": [ "node_modules" ],
and type definitions are there in node_modules
"devDependencies": {
"@types/core-js": "^0.9.32",
"@types/node": "^6.0.31"
I also tried to use typings.json
and typings directory without success.
{
"globalDependencies": {
"core-js": "registry:dt/core-js#0.0.0+20160725163759",
"jasmine": "registry:dt/jasmine#2.2.0+20160621224255",
"node": "registry:dt/node#6.0.0+20160815222444"
}
}
FYI, versions
$ node --version
v5.7.1
$ npm --version
3.6.0
$ tsc --version
Version 2.0.0
How do I get rid of TS2304 errors with webpack
command?
I added this to work in tsconfig.json
, and it seems working without any error.
"compilerOptions": {
"target": "es5",
"lib": ["es5", "es6", "dom"], <--- this
...
}
I am not sure lib
are for Typescript 2.0 function or not, but found out there are several libraries are available
From the typescript config schema (note the es2015.collection)
"lib": {
"description": "Specify library file to be included in the compilation. Requires TypeScript version 2.0 or later.",
"type": "array",
"items": {
"type": "string",
"enum": [ "es5", "es6", "es2015", "es7", "es2016", "es2017", "dom", "webworker", "scripthost", "es2015.core", "es2015.collection", "es2015.generator", "es2015.iterable",
"es2015.promise", "es2015.proxy", "es2015.reflect", "es2015.symbol", "es2015.symbol.wellknown", "es2016.array.include", "es2017.object", "es2017.sharedmemory" ]
}
}
This solves the compile errors, but I still wonder why tsc
command works without any errors, but webpack
does not. tsc
searches for all possible libraries without using lib
by tsconfig.json
?
Map
, Set
and Promise
are ES6
features.
In your tsconfig.json
you are using:
"target": "es5"
This causes the compiler to use the normal es5
lib.d.ts, which lacks the definitions for the above types.
You want to use the lib.es6.d.ts:
"target": "es6"
Just add:
"lib": ["es6"] // means at least ES6
Don't change target.
Target is used to tell Typescript into which version of ECMAScript to compile your .ts
files. Of course, you can change it, if the browser your application will be running in, will support that version of ECMAScript.
For example, I use "target": "es5"
and "lib": ["es6"]
.
Another reason could be:
That your .ts
file is not under "rootDir": "./YourFolder",
If you are wondering why none of these fixes work for you keep in mind -- if you specify the file to compile on the command line or package.json tsc will NOT read your tsconfig.json file and therefore have no effect. Instead specify the "files" and "outDir" in your tsconfig.json and one of the "lib" fixes will probably work for you. Then compile with only:
tsc --sourcemaps
tsc index.ts --lib "es6"
If adding lib not working in tsconfig.json, using above command line option