Unable to authenticate to Azure ML Workspace using Service Principal

• Package Name: azureml-core
• Package Version: 1.13.0
• Operating System: Windows 10.0.18363
• Python Version: 3.6.2

Describe the bug Unable to authenticate to Azure ML Workspace using Service Principal. I get the following error: AttributeError: ‘AdalAuthentication’ object has no attribute ‘get_token’.

To Reproduce Steps to reproduce the behavior:

1. pip install azureml-core==1.13.0

from azureml.core import Workspace
from azureml.core.authentication import ServicePrincipalAuthentication

tenant = "tenant"
client = "client"
key = "key"

credentials = ServicePrincipalAuthentication(
           tenant_id=tenant,
           service_principal_id=client,
           service_principal_password=key)

workspace = Workspace.from_config("config.json", auth=credentials)

with config.json file containing information about the Workspace.

Expected behavior To be able of attaching to the Workspace using Service Principal.

[abij]

It’s not because of AzureML. (downgrading to 1.12.0 causes the same issue.) As @sajalda23409 mentioned it’s related to https://pypi.org/project/azure-mgmt-resource/15.0.0/

Fixed with pinning the previous version: pip install azure-mgmt-resource==10.2.0

Or if you are using Databricks:

if dbutils.library.installPyPI('azure-mgmt-resource', version="10.2.0"):
  dbutils.library.restartPython()

[nickzhums]

We are taking a look at this issue, and will provide update later For the time being, a workaround is using azure-mgmt-resources 10.2.0 cc @yonzhan @changlong-liu @00Kai0 @jsntcy