@name Invalid multi provider @category runtime @shortDescription Expected provider to be `multi: true` but did not get an Array @description The Angular runtime will throw this error when it injects a token intended to be used with `multi: true` but a non-Array was found instead. For example, `ENVIRONMENT_INITIALIZER` should be provided like `{provide: ENVIRONMENT_INITIALIZER, multi: true, useValue: () => {...}}`. @reviewed 2022-11-28