# 'ModuleNotFoundError' when connecting to remote cluster

**URL:** <https://discuss.ray.io/t/modulenotfounderror-when-connecting-to-remote-cluster/4585>\
**Category:** Ray Client\
**Created:** [January 5, 2022, 11:50am UTC](https://discuss.ray.io/t/modulenotfounderror-when-connecting-to-remote-cluster/4585 "2022-01-05T11:50:47Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![aeroaks](https://sea2.discourse-cdn.com/flex020/user_avatar/discuss.ray.io/aeroaks/32/1948_2.png) [@aeroaks](https://discuss.ray.io/u/aeroaks)\
**Post date:** [January 5, 2022, 11:50am UTC](https://discuss.ray.io/t/modulenotfounderror-when-connecting-to-remote-cluster/4585/1 "2022-01-05T11:50:47Z")

</div>

Hi,

I am trying to use ray for scaling out the ‘task’ in the my notebook. The library ‘mod\_a’ is in development so we install that and another dependency ‘mod\_b’ in pip’s ‘-e’ mode. The remote cluster is deployed on Azure and when we run test examples without external dependencies, then it works fine.

The connection to remote cluster is defined using the following statement:

```auto
ray.init(f"ray://127.0.0.1:{LOCAL_PORT}",
         runtime_env={
             "working_dir": "../src", # to access files
         }) 

```

When I try to to use a basic version of our library’s code in the notebook and try to **put** the object from ‘mod\_a’ in the cluster, it throws the following error:

```auto
C:\ProgramData\Anaconda3\envs\icrm\lib\site-packages\ray\util\client\worker.py in put(self, val, client_ref_id)
    396 "call 'put' on it (or return it).")
    397 data = dumps_from_client(val, self._client_id)
--> 398 return self._put_pickled(data, client_ref_id)
    399 
    400 def _put_pickled(self, data, client_ref_id: bytes):

C:\ProgramData\Anaconda3\envs\icrm\lib\site-packages\ray\util\client\worker.py in _put_pickled(self, data, client_ref_id)
    405 if not resp.valid:
    406 try:
--> 407 raise cloudpickle.loads(resp.error)
    408 except (pickle.UnpicklingError, TypeError):
    409 logger.exception("Failed to deserialize {}".format(resp.error))

ModuleNotFoundError: No module named 'mod_b'

```

The `mod_b` is installed in editable mode in the local conda’s pip environment from where the jupyter kernel is running.

When using _py\_modules_ to define mod\_a, mod\_b as dependencies, the `put` command complains about `ModuleNotFoundError` for the dependencies of the mod\_b.

How do I resolve this error?