[API reference](https://evolu.dev/docs/api-reference) › [@evolu/common](https://evolu.dev/docs/api-reference/common) › [Task](https://evolu.dev/docs/api-reference/common/Task) › SemaphoreDisposedError

```ts
const SemaphoreDisposedError: typed(
  "SemaphoreDisposedError",
);
```

Defined in: [packages/common/src/Task.ts:2573](https://github.com/evoluhq/evolu/blob/e7144e2bbe9069362b62dec1b64a8aa922b8f1b0/packages/common/src/Task.ts#L2573)

Abort reason used when a [Semaphore](https://evolu.dev/docs/api-reference/common/Task/interfaces/Semaphore) is disposed.