# Value error : Connection error **URL:** \ **Category:** 🤗Transformers\ **Created:** [February 10, 2021, 1:55pm UTC](https://discuss.huggingface.co/t/value-error-connection-error/3583 "2021-02-10T13:55:42Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![Katarina](https://avatars.discourse-cdn.com/v4/letter/k/eb8c5e/32.png) [@Katarina](https://discuss.huggingface.co/u/Katarina)\ **Post date:** [February 10, 2021, 1:55pm UTC](https://discuss.huggingface.co/t/value-error-connection-error/3583/1 "2021-02-10T13:55:42Z")
Hello, I am new in this forum and Hugging face models. Could someone help with this: I want to use model ‘Helsinki-NLP/opus-mt-en-sla’. I am using code from the site: from transformers import AutoTokenizer, AutoModelForSeq2SeqLM tokenizer = AutoTokenizer.from\_pretrained(“Helsinki-NLP/opus-mt-en-sla”) model = AutoModelForSeq2SeqLM.from\_pretrained(“Helsinki-NLP/opus-mt-en-sla”) but I get this error: ValueError: Connection error, and we cannot find the requested files in the cached path. Please try again or make sure your Internet connection is on. I have installed all necessary libraries and my internet connection is good…could someone help with this? Thanks ---
**Author:** ![lewtun](https://sea2.discourse-cdn.com/hellohellohello/user_avatar/discuss.huggingface.co/lewtun/32/30995_2.png) [@lewtun](https://discuss.huggingface.co/u/lewtun)\ **Post date:** [February 10, 2021, 2:01pm UTC](https://discuss.huggingface.co/t/value-error-connection-error/3583/2 "2021-02-10T14:01:40Z")
Hello @Katarina, I was able to run your code snippet without any problems on my machine, so I wonder whether there is some firewall / proxy you need to configure on your end? A simple test that your connection is fine would be to spin up a Google Colab notebook and see if your code works there. Alternatively, you could try upgrading to the latest version of `transformers` just to be sure it’s not an old bug that got fixed recently. ---
**Author:** ![Katarina](https://avatars.discourse-cdn.com/v4/letter/k/eb8c5e/32.png) [@Katarina](https://discuss.huggingface.co/u/Katarina)\ **Post date:** [February 10, 2021, 2:17pm UTC](https://discuss.huggingface.co/t/value-error-connection-error/3583/3 "2021-02-10T14:17:59Z")
Hi Lewis, thank you on answer. I checked on Google Colab and there is working fine. I am traying from Watson Studio, so probably then I have some blockades. Do you maybe know how is possible to incorporate that part - defining a proxy into this code? ---
**Author:** ![lewtun](https://sea2.discourse-cdn.com/hellohellohello/user_avatar/discuss.huggingface.co/lewtun/32/30995_2.png) [@lewtun](https://discuss.huggingface.co/u/lewtun)\ **Post date:** [February 10, 2021, 2:25pm UTC](https://discuss.huggingface.co/t/value-error-connection-error/3583/4 "2021-02-10T14:25:21Z")
Hmm I am not familiar with Watson Studio so perhaps you need to do some special login to establish a connection? If you’re running on a Linux machine, you can edit the `no_proxy` environment variable in the same shell that you’re running your code from, e.g. [bash - Set a network range in the no\_proxy environment variable - Unix & Linux Stack Exchange](https://unix.stackexchange.com/questions/23452/set-a-network-range-in-the-no-proxy-environment-variable) However, my guess is that you might have more luck getting in touch with the IBM support to help you solve the problem 🙂 ---
**Author:** ![Katarina](https://avatars.discourse-cdn.com/v4/letter/k/eb8c5e/32.png) [@Katarina](https://discuss.huggingface.co/u/Katarina)\ **Post date:** [February 10, 2021, 2:27pm UTC](https://discuss.huggingface.co/t/value-error-connection-error/3583/5 "2021-02-10T14:27:17Z")
Ok, I will try first with no proxy ev…thank you very much! Many regards…🙂 ---
**Author:** ![Katarina](https://avatars.discourse-cdn.com/v4/letter/k/eb8c5e/32.png) [@Katarina](https://discuss.huggingface.co/u/Katarina)\ **Post date:** [February 19, 2021, 11:37am UTC](https://discuss.huggingface.co/t/value-error-connection-error/3583/6 "2021-02-19T11:37:12Z")
Hi, I just have update on this topic…I found a solution. See code below: import os #proxy = ‘http://:@:’ proxy = “[https://x.x.xx.x](https://x.x.xx.x):xxxx” os.environ[‘http\_proxy’] = proxy os.environ[‘HTTP\_PROXY’] = proxy os.environ[‘https\_proxy’] = proxy os.environ[‘HTTPS\_PROXY’] = proxy ---
**Author:** ![yangliu2](https://avatars.discourse-cdn.com/v4/letter/y/aeb1de/32.png) [@yangliu2](https://discuss.huggingface.co/u/yangliu2)\ **Post date:** [July 20, 2021, 9:55pm UTC](https://discuss.huggingface.co/t/value-error-connection-error/3583/7 "2021-07-20T21:55:47Z")
I have a related question. I have an environment that doesn’t have internet. I downloaded the model inside of a docker container and moved the docker imaged into the no-internet environment. It’s still giving me the Connection Error even if I pointed to the cached\_dir. Is there anyway to stop the code from requiring a internet connection and just use the cached\_dir? ```auto model_name = f'Helsinki-NLP/opus-mt-mul-en' # Download the model and the tokenizer cache_dir = "/root/.cache/huggingface/transformers" model = MarianMTModel.from_pretrained(model_name, cache_dir=cache_dir) tokenizer = MarianTokenizer.from_pretrained(model_name, cache_dir=cache_dir) ``` ---
**Author:** ![lewtun](https://sea2.discourse-cdn.com/hellohellohello/user_avatar/discuss.huggingface.co/lewtun/32/30995_2.png) [@lewtun](https://discuss.huggingface.co/u/lewtun)\ **Post date:** [August 2, 2021, 6:20pm UTC](https://discuss.huggingface.co/t/value-error-connection-error/3583/8 "2021-08-02T18:20:16Z")
hey @yangliu2 what happens if you set the `TRANSFORMERS_OFFLINE=1` as an environment variable in your docker container? see more info [here](https://huggingface.co/transformers/installation.html#offline-mode) ---
**Author:** ![yangliu2](https://avatars.discourse-cdn.com/v4/letter/y/aeb1de/32.png) [@yangliu2](https://discuss.huggingface.co/u/yangliu2)\ **Post date:** [August 4, 2021, 7:03pm UTC](https://discuss.huggingface.co/t/value-error-connection-error/3583/9 "2021-08-04T19:03:07Z")
@lewtun What you suggested seems to work. Although this has to be set before `from transformers import MarianMTModel, MarianTokenizer` if I want to use os package to set environmental variables. Other than it doesn’t follow PEP8, models seem to be loading okay.