Push verification ends with "TypeError: can only concatenate str (not "NoneType") to str"

Describe the bug Not able to login using Okta Verify. Checked both kinds regular and Push and result are the same - TypeError: can only concatenate str (not “NoneType”) to str

To Reproduce Steps to reproduce the behavior:

1. Configure ~/.okta-aws
2. Run CLI tool with specific okta and aws profiles okta-awscli --okta-profile okta-aws206 --profile okta-aws206 --debug
3. Catch the error

Expected behavior ~/.aws/credentials should be updated with a token for okta-aws206

Output Output of your okta-awscli run, using the --debug flag.

okta-awscli --okta-profile okta-aws206 --profile okta-aws206 --debug
INFO - Temporary credentials have expired. Requesting new credentials.
INFO - Authenticating to: somecompany.okta.com
INFO - Authenticating as: name.surname
Enter password: 
INFO - App Link set as: https://somecompany.okta.com/home/amazon_aws/0oa1f32y7xf1K56aT1d8/272  # Found in Okta's configuration for your AWS account.
ERROR - Unsupported factorType: sms
Registered MFA factors:
1: Google Authenticator
2: Okta Verify - Push
3: Okta Verify
Please select the MFA factor: 2
INFO - Performing secondary authentication using: OKTA
DEBUG - {'id': 'opf1drfq8icq0OkZ21d8', 'factorType': 'push', 'provider': 'OKTA', 'vendorName': 'OKTA', 'profile': {'credentialId': '[e-mail]', 'deviceType': 'SmartPhone_IPhone', 'keys': [{'kty': 'PKIX', 'use': 'sig', 'kid': 'default', 'x5c': ['MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAsua0l7mgnN1NmZ8aS9gNLhEeEPpft40umIouk+TjyugDFKMFXD8L5vYcstLxKjzMkm/E+0o0HUeF3zRpKci+QlYGv6rhZ7udwTRKHyCoIQ9gpF3T95qM5NRLjscg1rFSURfmjXMPTmDOTDOXcTBlNvfSqU0DZSSf9MTF2kvL9MI37HkNRU307x26tSzNMTykqhQ1/gNd0AYaQ9es7yJhE5HYaUBqY1oRMJh3Xhm1C068NKgcc58mHXwXSF91Z9l9+ZvgHGboMEajZMIp5FmmajzS9BJb9A6PaBb4W6M96q1yU9RNHQcG4uYjBAY1vAnVXJjNs1Ygd4pBvCr0951HHwIDAQAB']}], 'name': 'GS.phone', 'platform': 'IOS', 'version': '11.2.6'}, '_links': {'verify': {'href': 'https://somecompany.okta.com/home/amazon_aws/0oa1f32y7xf1K56aT1d8/verify', 'hints': {'allow': ['POST']}}}}
Waiting for push verification...
ERROR - No Extra Verification
Traceback (most recent call last):
  File "/usr/local/bin/okta-awscli", line 10, in <module>
    sys.exit(main())
  File "/usr/local/lib/python3.7/site-packages/click/core.py", line 764, in __call__
    return self.main(*args, **kwargs)
  File "/usr/local/lib/python3.7/site-packages/click/core.py", line 717, in main
    rv = self.invoke(ctx)
  File "/usr/local/lib/python3.7/site-packages/click/core.py", line 956, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/usr/local/lib/python3.7/site-packages/click/core.py", line 555, in invoke
    return callback(*args, **kwargs)
  File "/usr/local/lib/python3.7/site-packages/oktaawscli/okta_awscli.py", line 113, in main
    aws_auth, okta_profile, profile, verbose, logger, token, cache
  File "/usr/local/lib/python3.7/site-packages/oktaawscli/okta_awscli.py", line 19, in get_credentials
    _, assertion = okta.get_assertion()
  File "/usr/local/lib/python3.7/site-packages/oktaawscli/okta_auth.py", line 363, in get_assertion
    assertion = self.get_saml_assertion(resp)
  File "/usr/local/lib/python3.7/site-packages/oktaawscli/okta_auth.py", line 285, in get_saml_assertion
    self.logger.error("SAML assertion not valid: " + assertion)
TypeError: can only concatenate str (not "NoneType") to str

Environment (please complete the following information):

• OS: MacOS 10.14.4
• Python 3.7.3
• Version of okta-awscli 0.4.0

Additional context ~/.okta-aws

➜ cat ~/.okta-aws     looks like this                                           
[okta-aws206]
base-url = somecompany.okta.com

username =name.surname
app-link = https://somecompany.okta.com/home/amazon_aws/0oa1f32y7xf1K56aT1d8/272  

[ido-vcita]

Any updates? We are having issues as well with okta and AWS SSO 😦

[dovy]

Same