혹시 이런오류는 왜 날까요?

../../node_modules/@types/webgl2/index.d.ts:582:13 - error TS2403: Subsequent variable declarations must have the same type.  Variable 'WebGL2RenderingContext' must be of type '{ new (): WebGL2RenderingContext; prototype: WebGL2RenderingContext; readonly ACTIVE_ATTRIBUTES: number; readonly ACTIVE_TEXTURE: number; ... 556 more ...; readonly WAIT_FAILED: number; }', but here has type '{ new (): WebGL2RenderingContext; prototype: WebGL2RenderingContext; readonly ACTIVE_ATTRIBUTES: number; readonly ACTIVE_TEXTURE: number; 

... 557 more ...; readonly MAX_CLIENT_WAIT_TIMEOUT_WEBGL: number; }'.

582 declare var WebGL2RenderingContext: {

                ~~~~~~~~~~~~~~~~~~~~~~

  ../../AppData/Roaming/npm/node_modules/typescript/lib/lib.dom.d.ts:16394:13

    16394 declare var WebGL2RenderingContext: {

                      ~~~~~~~~~~~~~~~~~~~~~~

    'WebGL2RenderingContext' was also declared here.

이러한 오류가 나네요.. 구글링해도 명확한 답이 안나와요ㅠ