ENOENT: no such file or directory, stat chardet package

When deploying a Queue Trigger app and having the azure-storage-blob package installed, the app fails to deploy because the KuduSync process is looking for a file in the chardet lib that doesn’t appear to exist in my .python_packages folder that is generated by the --build-native-deps pre deployment task. 7:06:54 AM wjtestqueutrig: Error: ENOENT: no such file or directory, stat '/tmp/zipdeploy/extracted/.python_packages/lib/python3.6/site-packages/chardet-3.0.4.dist-info/chardetect,sha256=fadXTQgqo6bB2Ofhhd0rG4HjgXzoiXwYp2Dtv3EI80c,229

Edit: When deploying to a new Consumption plan, the requirements.txt / init below work successfully. I am still experiencing this issue when deploying to brand new app service plan.

Investigative information

Please provide the following:

• Timestamp: 7:06:54 AM 2019-10-11 CST
• Function App name: wjtestqueutrig
• Function name(s) (as appropriate): QueueTrigger
• Core Tools version: 2.7.1704

Repro steps

Provide the steps required to reproduce the problem:

Expected behavior

Expected to successfully deploy the Azure Function.

Actual behavior

I receive the following error and the contents of my QueueTrigger function never makes it up to Azure / the App Service as observed in Kudu / SSH.

The most interesting line in this error is 7:06:54 AM wjtestqueutrig: Error: ENOENT: no such file or directory, stat '/tmp/zipdeploy/extracted/.python_packages/lib/python3.6/site-packages/chardet-3.0.4.dist-info/chardetect,sha256=fadXTQgqo6bB2Ofhhd0rG4HjgXzoiXwYp2Dtv3EI80c,229 I don’t know where this file is coming from. I looked in my .python_packages and it doesn’t exist there so perhaps this is an issue with the KuduSync command?

I’m able to run the python function locally without any issue.

7:05:46 AM wjtestqueutrig: Starting deployment...
7:06:36 AM wjtestqueutrig: Fetching changes.
7:06:36 AM wjtestqueutrig: Cleaning up temp folders from previous zip deployments and extracting pushed zip file /tmp/zipdeploy/7736f54c-c12c-42c1-87a1-f7d40d878375.zip (5.81 MB) to /tmp/zipdeploy/extracted
7:06:43 AM wjtestqueutrig: Updating submodules.
7:06:43 AM wjtestqueutrig: Preparing deployment for commit id 'fc5b500bed'.
7:06:44 AM wjtestqueutrig: Generating deployment script.
7:06:45 AM wjtestqueutrig: Using the following command to generate deployment script: 'azure site deploymentscript -y --no-dot-deployment -r "/tmp/zipdeploy/extracted" -o "/home/site/deployments/tools" --basic --sitePath "/tmp/zipdeploy/extracted"'.
7:06:48 AM wjtestqueutrig: Generating deployment script for Web Site
7:06:48 AM wjtestqueutrig: Generated deployment script files
7:06:48 AM wjtestqueutrig: Running deployment command...
7:06:48 AM wjtestqueutrig: Command: "/home/site/deployments/tools/deploy.sh"
7:06:48 AM wjtestqueutrig: Handling Basic Web Site deployment.
7:06:49 AM wjtestqueutrig: Kudu sync from: '/tmp/zipdeploy/extracted' to: '/home/site/wwwroot'
7:06:49 AM wjtestqueutrig: Copying file: 'host.json'
7:06:49 AM wjtestqueutrig: Copying file: 'proxies.json'
7:06:49 AM wjtestqueutrig: Copying file: 'requirements.txt'
7:06:49 AM wjtestqueutrig: Copying file: '.python_packages/requirements.txt.md5'
7:06:49 AM wjtestqueutrig: Copying file: '.python_packages/lib/python3.6/site-packages/_cffi_backend.cpython-36m-x86_64-linux-gnu.so'
7:06:49 AM wjtestqueutrig: Copying file: '.python_packages/lib/python3.6/site-packages/six.py'
7:06:49 AM wjtestqueutrig: Copying file: '.python_packages/lib/python3.6/site-packages/.libs_cffi_backend/libffi-ae16d830.so.6.0.4'
[SNIPPED FOR BREVITY]
7:06:51 AM wjtestqueutrig: Omitting next output lines...
7:06:54 AM wjtestqueutrig: Error: ENOENT: no such file or directory, stat '/tmp/zipdeploy/extracted/.python_packages/lib/python3.6/site-packages/chardet-3.0.4.dist-info/chardetect,sha256=fadXTQgqo6bB2Ofhhd0rG4HjgXzoiXwYp2Dtv3EI80c,229
7:06:54 AM wjtestqueutrig: '
7:06:54 AM wjtestqueutrig: An error has occurred during web site deployment.
7:06:54 AM wjtestqueutrig: Kudu Sync failed
7:06:54 AM wjtestqueutrig: \n/opt/Kudu/Scripts/starter.sh "/home/site/deployments/tools/deploy.sh"
7:06:54 AM wjtestqueutrig: App container will begin restart within 10 seconds.
7:07:05 AM wjtestqueutrig: Waiting for long running command to finish...
Deployment to "wjtestqueutrig" completed.

Known workarounds

If I don’t need azure-storage-blob, the function works fine. In this simplified example, I don’t need it (as the init never calls azure.storage.blob) but I DO need it for the actual application I’m building.

Related information

Provide any related information

• Links to source
• Contents of the requirements.txt file
• Bindings used

Source

# __init__.py

import logging

import azure.functions as func

def main(msg: func.QueueMessage) -> None:
    logging.info('Python queue trigger function processed a queue item: %s',
                 msg.get_body().decode('utf-8'))

asn1crypto==1.0.1
azure-common==1.1.23
azure-functions==1.0.4
azure-storage-blob==2.1.0
azure-storage-common==2.1.0
certifi==2019.9.11
cffi==1.12.3
chardet==3.0.4
cryptography==2.7
idna==2.8
pycparser==2.19
python-dateutil==2.8.0
requests==2.22.0
six==1.12.0
urllib3==1.25.6

[anirudhgarg]

@PrateekVachher - We have seen Kudu Sync be sometimes problematic when we have a running app if you are not using Run from Package. So for this scenario yes it is recommended to use WEBSITE_RUN_FROM_PACKAGE=1 @priyaananthasankar @wjohnson please also try and let us know

[ankitkumarr]

Would you mind trying to add an App Setting WEBSITE_RUN_FROM_PACKAGE = 1 to your function app and then retrying.