Troubleshooting Angular Build Errors: Integrating Three.js

Upon setting up a new Angular application and integrating three along with @types/three, I proceeded to create a basic component. However, upon executing ng build --prod, the following errors are displayed:

ERROR in node_modules/three/src/core/BufferAttribute.d.ts:21:6 - error TS1086: An accessor cannot be declared in an ambient context.

21  set needsUpdate( value: boolean );
        ~~~~~~~~~~~
node_modules/three/src/renderers/webgl/WebGLUtils.d.ts:3:43 - error TS2304: Cannot find name 'WebGL2RenderingContext'.

3  constructor( gl: WebGLRenderingContext | WebGL2RenderingContext, extensions: any, capabilities: any );
                                            ~~~~~~~~~~~~~~~~~~~~~~
node_modules/three/src/core/InterleavedBufferAttribute.d.ts:20:6 - error TS1086: An accessor cannot be declared in an ambient context.

20  get count(): number;
        ~~~~~
node_modules/three/src/core/InterleavedBufferAttribute.d.ts:21:6 - error TS1086: An accessor cannot be declared in an ambient context.

21  get array(): ArrayLike<number>;
        ~~~~~
node_modules/three/src/renderers/webgl/WebGLAttributes.d.ts:6:43 - error TS2304: Cannot find name 'WebGL2RenderingContext'.

6  constructor( gl: WebGLRenderingContext | WebGL2RenderingContext );

Even after including three in the Typescript types array as an attempt to resolve the issue:

{
  "extends": "./tsconfig.json",
  "compilerOptions": {
    "outDir": "./out-tsc/app",
    "types": ["three"]
  },
  "files": ["src/main.ts", "src/polyfills.ts"],
  "include": ["src/**/*.ts"],
  "exclude": ["src/test.ts", "src/**/*.spec.ts"]
}

Answer №1

three.js relies on TypeScript version 3.7. As of

@angular/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="a1c2cdc8e1988f918f918cd3c28f9091">[email protected]</a>
and
@angular/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="3754584552770e190719071a4554190e">[email protected]</a>
, you can also use TypeScript 3.7 with Angular. For more information, visit the Angular repository:

https://github.com/angular/angular-cli/issues/16071#issuecomment-577109414

three.js R112

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