# tensorplay.distributed.elastic.multiprocessing.ChildFailedError Source: https://www.tensorplay.cn/docs/generated/tensorplay.distributed.elastic.multiprocessing.ChildFailedError.html ```python exception tensorplay.distributed.elastic.multiprocessing.ChildFailedError(name_or_failures: str | list[tuple[str, ProcessFailure]] | None = None, failures: dict[int, ProcessFailure] | None = None) ``` Raised by the launcher when one or more workers failed. failures is a list of (role_name, ProcessFailure) pairs so the caller can report which role failed and why.