Flyte enables production-grade orchestration for machine learning workflows and data processing created to accelerate local workflows to production.

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<@U06RKAMK0UC> I am trying to run a (local) task on the cluster. For this I am trying the following:
```@task(container_image=union.ImageSpec(builder="union", name="my-image", requirements="uv.lock"))
def show_stats(location: str) -&gt; None:
    print("this works")

if __name__ == '__main__':
    remote = UnionRemote(
        FlyteConfig.for_endpoint("my-endpoint"),
        default_project="my-project",
        default_domain="development",
    )

    my_task = remote.execute(
        show_stats,
        inputs={
            "location": "<s3://my-s3-location>",
        },
        version="latest",
    )```
When I run this I get the following error: `FileNotFoundError: [Errno 2] No such file or directory: 'uv.lock'`

When I run the whole workflow it works though

*Reasoning Complete!* 🤖 🔍 *Searched knowledge base*: I want to look up how local task execution manages file dependencies like 'uv.lock', and why this might differ from running the full workflow, to help explain and resolve the error you're seeing.
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✍️ *Generated answer*: I have enough information to explain why you're seeing the error and how to resolve it.

The error `FileNotFoundError: <https://github.com/flyteorg/flyte/blob/master/docs/user_guide/customizing_dependencies/imagespec.md#copy-additional-files-or-directories|Errno 2] No such file or directory: 'uv.lock'` occurs because when you run a single task remotely with an `ImageSpec` that references a `uv.lock` file, Flyte expects that file to be present in your current working directory (or the path you specify) at the time of image build. When running a full workflow, the build context is usually set up correctly, but for ad-hoc task execution, the context may not include the `uv.lock` file unless you explicitly provide it. According to the [ImageSpec documentation>, you can use the `copy` parameter in your `ImageSpec` to ensure required files like `uv.lock` are included in the build context.

Try updating your `ImageSpec` as follows to copy the `uv.lock` file into the image:

```
@task(container_image=union.ImageSpec(builder="union", name="my-image", requirements="uv.lock", copy=["uv.lock"]))
def show_stats(location: str) -&gt; None:
    print("this works")
```

Would you like more detail on how Flyte builds images for ad-hoc task execution or how to structure your project for consistent results?

Sources:
- <https://github.com/flyteorg/flyte/issues/6392|https://github.com/flyteorg/flyte/issues/6392>
- <https://github.com/flyteorg/flyte/issues/6438|https://github.com/flyteorg/flyte/issues/6438> :+1: 0 button :-1: 0 button :bulb: *Hint:* Mention @runllm in the thread for followups.