SSL errors during requirements installation, unable to use cnn models

glitchyordis

Hi. While trying to install the requirements in requirements.txt, I have a lot of SSL Errors (see example text below). I'm able to use the basic features such as viewing the depth, mobilessnet-ssd in "depthai_demo.py" on the OAK-D PRO, but unable to use other models such as the deeplabv3p_version CNN model (please refer to attached figure).

I've tried the installation on a different computer; the same errors were displayed.

Kindly assist me with this. Thank you.

Could not fetch URL https://artifacts.luxonis.com/artifactory/luxonis-depthai-data-local/wheels/wrapt/: There was a problem confirming the ssl certificate: HTTPSConnectionPool(host='artifacts.luxonis.com', port=443): Max retries exceeded with url: /artifactory/luxonis-depthai-data-local/wheels/wrapt/ (Caused by SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self signed certificate in certificate chain (ssl.c:1129)'))) - skipping
WARNING: Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self signed certificate in certificate chain (ssl.c:1129)'))': /artifactory/luxonis-python-snapshot-local/wrapt/
WARNING: Retrying (Retry(total=3, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self signed certificate in certificate chain (ssl.c:1129)'))': /artifactory/luxonis-python-snapshot-local/wrapt/
WARNING: Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self signed certificate in certificate chain (ssl.c:1129)'))': /artifactory/luxonis-python-snapshot-local/wrapt/
WARNING: Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self signed certificate in certificate chain (ssl.c:1129)'))': /artifactory/luxonis-python-snapshot-local/wrapt/
WARNING: Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self signed certificate in certificate chain (ssl.c:1129)'))': /artifactory/luxonis-python-snapshot-local/wrapt/
Could not fetch URL https://artifacts.luxonis.com/artifactory/luxonis-python-snapshot-local/wrapt/: There was a problem confirming the ssl certificate: HTTPSConnectionPool(host='artifacts.luxonis.com', port=443): Max retries exceeded with url: /artifactory/luxonis-python-snapshot-local/wrapt/ (Caused by SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self signed certificate in certificate chain (_ssl.c:1129)'))) - skipping

erik

Hello glitchyordis ,
Are you using the latest commit of depthai repo, latest depthai-sdk and latest blobconverter? I believe this issue was solved a few months ago - but it might have been something similar.
Thanks, Erik

glitchyordis

erik, yes. the repo was cloned 02/06 and I ran an installation for those in requirements.txt.

Requirement already satisfied: blobconverter==1.3.0

Requirement already satisfied: boto3

Requirement already satisfied: PyYAML
Requirement already satisfied: requests

Requirement already satisfied: jmespath<2.0.0,>=0.7.1

Requirement already satisfied: s3transfer<0.7.0,>=0.6.0

Requirement already satisfied: botocore<1.28.0,>=1.27.1
Requirement already satisfied: idna<4,>=2.5

Requirement already satisfied: certifi>=2017.4.17

Requirement already satisfied: urllib3<1.27,>=1.21.1

Requirement already satisfied: charset-normalizer_=2.0.0

Requirement already satisfied: python-dateutil<3.0.0,>=2.1

Requirement already satisfied: six>=1.5

erik

Hi glitchyordis , can you try accessing http://blobconverter.luxonis.com app? As it's http (not https), it might be that your firewall is blocking it.
Thanks, Erik

glitchyordis

erik This seems to work for now. Thank you.

technigluon

erik Hi Erik, I have also an SSL error on the blobconverter, I can access the blob converter page you provided without any issue.

I'm on ubuntu 22, python 3.10 and I ran the installation script sudo wget -qO- https://docs.luxonis.com/install_depthai.sh | bash.

The application depthai_launcher launches but gets stuck when a new window opens with the following error message:
File "$HOME/libs/depthai/depthai_demo.py", line 657, in run self.instance.run_all(self.conf) File "$HOME/libs/depthai/depthai_demo.py", line 132, in run_all self.setup(conf) File "$HOME/libs/depthai/depthai_demo.py", line 264, in setup blobPath=self._blobManager.getBlob(shaves=self._conf.shaves, openvinoVersion=self._nnManager.openvinoVersion), File "$HOME/libs/venv/lib/python3.10/site-packages/depthai_sdk/managers/blob_manager.py", line 93, in getBlob self._blobPath = blobconverter.from_zoo( File "$HOME/libs/venv/lib/python3.10/site-packages/blobconverter/__init__.py", line 337, in from_zoo response = requests.get("http://artifacts.luxonis.com/artifactory/blobconverter-backup/blobs/{}".format(blob_name.name)) File "$HOME/libs/venv/lib/python3.10/site-packages/requests/api.py", line 75, in get return request('get', url, params=params, **kwargs) File "$HOME/libs/venv/lib/python3.10/site-packages/requests/api.py", line 61, in request return session.request(method=method, url=url, **kwargs) File "$HOME/libs/venv/lib/python3.10/site-packages/requests/sessions.py", line 542, in request resp = self.send(prep, **send_kwargs) File "$HOME/libs/venv/lib/python3.10/site-packages/requests/sessions.py", line 677, in send history = [resp for resp in gen] File "$HOME/libs/venv/lib/python3.10/site-packages/requests/sessions.py", line 677, in <listcomp> history = [resp for resp in gen] File "$HOME/libs/venv/lib/python3.10/site-packages/requests/sessions.py", line 237, in resolve_redirects resp = self.send( File "$HOME/libs/venv/lib/python3.10/site-packages/requests/sessions.py", line 655, in send r = adapter.send(request, **kwargs) File "$HOME/libs/venv/lib/python3.10/site-packages/requests/adapters.py", line 514, in send raise SSLError(e, request=request) SSLError: HTTPSConnectionPool(host='artifacts.luxonis.com', port=443): Max retries exceeded with url: /artifactory/blobconverter-backup/blobs/mobilenet-ssd_openvino_2021.4_6shave.blob (Caused by SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self signed certificate in certificate chain (_ssl.c:997)')))
Is this related to me being behind my institute's firewall? Though being behind a firewall has some inconveniences, it shouldn't prevent me from using Luxonis / OAK for work... : or is the depthai application unable to function behind a firewall?

erik

Hi @technigluon ,
Could you rather use depthai-viewer (instead of demo, which is deprecated)?

technigluon

I'm back home (no firewall here), trying to launch depthai-viewer in the virtual environment (from within which I've installed depthai and depthai-viewer) throws:
$ depthai-viewer ERROR: pip's dependency resolver does not currently take into account all the packages that are installed. This behaviour is the source of the following dependency conflicts. depthai-sdk 1.13.1.dev0+b0340e0c4ad869711d7d5fff48e41c46fe41f475 requires depthai==2.22.0, but you have depthai 2.24.0.0.dev0+c014e27e224f7ef3f6407be6b3f05be6c2fffd13 which is incompatible.
I will write about it in a new post as this has nothing to do with SSL.

erik

@technigluon could you try updating both depthai-sdk / depthai to latest version?

technigluon

@erik well it seems the error above got fixed by depthai-viewer itself: I let the viewer pursue the installation of its dependencies and the log (shown in an extra window of depthai-viewer) ended with:
Installing collected packages: wrapt, websockets, typing-extensions, pyarrow, depthai, pydantic, deprecated Attempting uninstall: depthai Found existing installation: depthai 2.22.0.0 Uninstalling depthai-2.22.0.0: Successfully uninstalled depthai-2.22.0.0 Successfully installed deprecated-1.2.14 depthai-2.24.0.0.dev0+c014e27e224f7ef3f6407be6b3f05be6c2fffd13 pyarrow-10.0.1 pydantic-1.9.0 typing-extensions-4.10.0 websockets-12.0 wrapt-1.16.0 Creating virtual environment... Status Dump: {"venv_site_packages": "$HOME/.virtualenvs/depthai/lib/python3.10/site-packages/depthai_viewer/venv-0.1.8/lib/python3.10/site-packages"}
After which I could use my OAK-D pro all right. So indeed it may have to do with the version of depthai.