Issue deploying Azure Function ##[error]Error: Error: Failed to deploy web package to App Service. Not Found (CODE: 404)

Question

Issue deploying Azure Function ##[error]Error: Error: Failed to deploy web package to App Service. Not Found (CODE: 404)

Harvey Marshall 0

I am trying to create a azure-pipeline to deploy a function app. Everything seems corect but I always encounter this set of errors:

##[error]Failed to deploy web package to App Service.

##[warning]Can't find loc string for key: KuduStackTraceURL

##[error]KuduStackTraceURL https://:@ratepilotapi-hbg5fvbtdhafgtcd.scm.uksouth-01.azurewebsites.net/api/vfs/LogFiles/kudu/trace

##[error]Error: Error: Failed to deploy web package to App Service. Not Found (CODE: 404)

##[warning]Error: Failed to update deployment history. Error: Method Not Allowed (CODE: 405)

the deploy section of my pipeline looks like this

  - task: AzureFunctionApp@1
   inputs:
    azureSubscription: 'RatePilotAzureServiceConnection'
    appType: 'functionApp'
    appName: 'ratepilotapi'
    resourceGroupName: 'stargazer'
    package: '$(System.D
      -name "API_URL" -value "<example>"
      -name "COSMOS_URI" -value "<example>"
      -name "DATABASE_NAME" -value "<example>"

1 answer

Your answer

Answer 1

Hi Harvey Marshall,

Thanks for reaching out to Microsoft Q&A.

The 404 Not Found and 405 Method Not Allowed errors usually point to one of a few deployment misconfigurations in Azure Pipelines.

404 error occurs when the pipeline is unable to reach the Function App’s Kudu endpoint.
This usually happens if the appName is incorrect or the Function App doesn’t exist in the specified resourceGroup.

I can see there is a mismatch between the appType and the actual app e.g., trying to deploy a Linux function app with appType: functionApp but not specifying linux.

Make sure the Function App ratepilotapi exists in the stargazer resource group in the UK South region.

package: '$(System.D
  -name "API_URL" ...

The package input must point to the zip or folder containing your Function App artifacts package: '$(System.DefaultWorkingDirectory)/drop/functionapp.zip'. Make sure the path exists in the build artifacts.

Change the version of task to AzureFunctionApp@2

task: AzureFunctionApp@2

Example:

        deploy:
          steps:
          - task: AzureFunctionApp@2
            inputs:
              connectedServiceNameARM: '$(azureSubscription)'
              appType: 'functionAppLinux'
              appName: $(functionAppName)
              deployToSlotOrASE: true
              package: '$(Pipeline.Workspace)/drop/$(Build.BuildId).zip'
              runtimeStack: 'NODE|20'
              deploymentMethod: 'auto'

Hope it helps!

Please do not forget to click "Accept the answer” and Yes, this can be beneficial to other community members.

User's image

If you have any other questions, let me know in the "comments" and I would be happy to help you.

Share via

Issue deploying Azure Function ##[error]Error: Error: Failed to deploy web package to App Service. Not Found (CODE: 404)

1 answer

Your answer