Typescript compiler: Unable to locate the definition for 'Map' data type

I am developing an Electron + Angular application. I have decided to incorporate Typescript for my Electron component, so I created a main.ts file and attempted to compile it to main.js using the 'tsc main.ts' command. Unfortunately, I encountered the following error:

node_modules/@types/selenium-webdriver/remote.d.ts:139:29 - error TS2304: Cannot find name 'Map'.

The compilation process still generated the main.js file successfully and I can run Electron without any issues, but I would prefer to have a single script that runs without any errors.

In my tsconfig.json file, I have specified the following configuration:

{
 "compileOnSave": false,
 "compilerOptions": {
  "baseUrl": "./",
  "outDir": "./dist/out-tsc",
  "sourceMap": true,
  "declaration": false,
  "module": "es2015",
  "moduleResolution": "node",
  "emitDecoratorMetadata": true,
  "experimentalDecorators": true,
  "target": "es5",
  "typeRoots": [
    "node_modules/@types"
   ],
  "lib": [
   "es2017",
   "dom"
  ]
 }
}

I have experimented with different combinations of target and lib configurations (such as es6) but have not been successful in resolving the issue.

If anyone could provide assistance, it would be greatly appreciated. Thank you!

angulartypescriptelectron

Answer №1

Running tsc main.ts does not take into account your tsconfig.json file. Instead, try using tsc -p . or simply tsc. If needed, you can specify the input files for compilation by utilizing the files, include, and exclude options within your tsconfig.json.

Answer №2

After implementing the include and exclude sections as mentioned above, I encountered persistent errors:

"../node_modules/@types/selenium-webdriver/http.d.ts:24:14 - error TS2583: Cannot find name 'Map'. Do you need to adjust your target library? Consider changing the `lib` compiler option to es2015 or a newer version."

The errors ceased once I executed: npm i @types/node

I am curious to understand the reasoning behind this issue (:

Answer №3

Encountering a similar problem after transitioning from Angular 6 to Angular 8. Discovered that the update process only upgrades Typescript, leaving the @types/node package in my package.json outdated (and it seems incompatible with the latest Typescript version). Resolving this issue was as simple as updating the package!

Answer №4

Ensure that the name of your library matches the .json file Download npm gulp and ci

Answer №5

I encountered a similar issue.

You can resolve it by running this command:

npm ci

This command successfully resolved the problem on my computer.

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