Error: Unable to locate namespace 'google' in TypeScript

I am currently working on an angular-cli project.

~root~/src/typings.json

{
  "globalDevDependencies": {
    "angular-protractor": "registry:dt/angular-protractor#1.5.0+20160425143459",
    "jasmine": "registry:dt/jasmine#2.2.0+20160621224255",
    "selenium-webdriver": "registry:dt/selenium-webdriver#2.44.0+20160317120654"
  },
  "globalDependencies": {
    "es6-shim": "registry:dt/es6-shim#0.31.2+20160602141504",
    "google.maps": "registry:dt/google.maps#3.20.0+20160914131659"
  }
}

~root~/typings/index.d.ts

/// <reference path="globals/angular-protractor/index.d.ts" />
/// <reference path="globals/es6-shim/index.d.ts" />
/// <reference path="globals/google.maps/index.d.ts" />
/// <reference path="globals/hammerjs/index.d.ts" />
/// <reference path="globals/jasmine/index.d.ts" />
/// <reference path="globals/selenium-webdriver/index.d.ts" />

~root~/src/tsconfig.json

{
  "compilerOptions": {
    "declaration": false,
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "lib": ["es6", "dom"],
    "mapRoot": "./",
    "module": "es6",
    "moduleResolution": "node",
    "outDir": "../dist/out-tsc",
    "sourceMap": true,
    "target": "es5",
    "typeRoots": [
      "../node_modules/@types",
      "../typings"
    ],
    "files": [
      "../typings/index.d.ts"
    ]
  }
}

Upon running ng serve, I encountered the following error messages in the console:

ERROR in [default] F:~root~\src\app\ui\google-map\map-marker\map-marker.directive.ts:7:26

Cannot find namespace 'google'

and

ERROR in [default] ~root~\src\app\trip-entry-page\trip-entry-page.component.ts:188:21

Cannot find name 'google'

~root~\src\app\ui\google-map\map-marker\map-marker.directive.ts:7:26

... 
@Input() veyoMapMarker: google.maps.MarkerOptions 
...

~root~\src\app\trip-entry-page\trip-entry-page.component.ts:188:21

... 
if (status === google.maps.DirectionsStatus.OK) { 
...

The application builds correctly and works, but how can I resolve these error messages?

angulartypescriptangular-clitypescript-typings

Answer №1

Apologies for the delayed reply, but I encountered a similar problem while working with Angular CLI RC.0.

After some investigation, I discovered that the issue was due to not installing and importing the necessary typings. To resolve this, you can follow these steps:

npm install --save-dev @types/googlemaps

import {} from '@types/googlemaps';

Answer №2

Dealing with a similar issue, I found a solution by making some adjustments.

import { } from 'googlemaps';
declare var google: any;

In my component.ts file, I removed the above code snippet and added the following in my tsconfig.app.json file:

{
    "extends": "../tsconfig.json",
    "compilerOptions": {
        "outDir": "../out-tsc/app",
        "module": "es2015",
        "types": [
            "googlemaps"
          ]
    },
    "exclude": [
        "test.ts",
        "**/*.spec.ts"
    ]
}

After these modifications, everything started working seamlessly.

Answer №3

I encountered a similar issue but was able to resolve it by following the instructions found in the designated documentation

npm install -D @types/google.maps

After installing the recommended package, I included the import statement either in my specific file or in the main file like so:

import '@types/google.maps';

This method effectively addressed the problem I was experiencing with the google.maps namespace and its associated types.

Best regards.

Answer №4

If you're encountering this problem in Vue.js, a simple solution is to include the following line at the beginning of your script section. Ensure that you have already installed @types/googlemaps.

/// <reference types="@types/googlemaps" />

Answer №5

To resolve the issue in IONIC 4, I resolved it by downloading @types/google-maps instead of @types/googlemaps

Simply execute the following command:

npm install @types/google-maps --save

then, import google into your component using:

import { google } from "google-maps";

Answer №6

Dealing with Angular 9 Issues

I attempted to install @types/googlemaps without success.

However, reverting back to "@types/googlemaps": "3.39.12" resolved the issue for me.

This snippet showcases my code changes:

In tsconfig.app.json (include googlemaps in types array)

"types": [
      "googlemaps"
    ]

In app module.ts

import { AgmCoreModule } from '@agm/core';
.
.
.
.
 imports: [
    BrowserModule,
    AppRoutingModule,
    AgmCoreModule.forRoot({
      apiKey: '...KEY...',
      libraries: ['places']
    })
  ],

To downgrade @types/googlemaps, navigate to your project's package.json file and modify @types/googlemaps version to "3.39.12". Remember to remove files from

node_module -> @types -> googlemaps

Finally, run the following command in your terminal:

npm install

Answer №7

  1. To utilize the package, simply import it using: 
    npm install @types/google-maps --save
  2. Include 
    "types": [ "googlemaps" ]
    in your tsconfig.app.json file. Your updated tsconfig.app.json should resemble the following: 
    {
    "extends": "../tsconfig.json",
    "compilerOptions": {
        "outDir": "../out-tsc/app",
        "module": "es2015",
        "types": [
            "googlemaps"
          ]
    },
    "exclude": [
        "test.ts",
        "**/*.spec.ts"
    ]
}

Answer №8

Execute the command provided below in a node terminal...

typings install dt~google.maps --global --save

Answer №9

Encountered a similar issue with Angular 7. No additional imports were necessary, simply executed npm install @types/googlemaps again and addressed any vulnerabilities with npm audit fix or npm audit fix --force as required.

Following these steps resolved the issue for me...

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