serverless-localstack 500 error deploying locally, deploys to AWS just fine

It appears that its failing on the call to updateStack()

AttributeError: 'NoneType' object has no attribute 'value'
2020-03-08T21:03:55:DEBUG:localstack.services.cloudformation.cloudformation_listener: Error response from CloudFormation (500) POST /: b'<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">\n<title>500 Internal Server Error</title>\n<h1>Internal Server Error</h1>\n<p>The server encountered an internal error and was unable to complete your request. Either the server is overloaded or there is an error in the application.</p>\n'
2020-03-08 21:03:55,380:API: Error on request:
Traceback (most recent call last):
  File "/opt/code/localstack/.venv/lib/python3.8/site-packages/werkzeug/serving.py", line 323, in run_wsgi
    execute(self.server.app)
  File "/opt/code/localstack/.venv/lib/python3.8/site-packages/werkzeug/serving.py", line 312, in execute
    application_iter = app(environ, start_response)
  File "/opt/code/localstack/.venv/lib/python3.8/site-packages/moto/server.py", line 135, in __call__
    return backend_app(environ, start_response)
  File "/opt/code/localstack/.venv/lib/python3.8/site-packages/flask/app.py", line 2309, in __call__
    return self.wsgi_app(environ, start_response)
  File "/opt/code/localstack/.venv/lib/python3.8/site-packages/flask/app.py", line 2295, in wsgi_app
    response = self.handle_exception(e)
  File "/opt/code/localstack/.venv/lib/python3.8/site-packages/flask_cors/extension.py", line 161, in wrapped_function
    return cors_after_request(app.make_response(f(*args, **kwargs)))
  File "/opt/code/localstack/.venv/lib/python3.8/site-packages/flask/app.py", line 1741, in handle_exception
    reraise(exc_type, exc_value, tb)
  File "/opt/code/localstack/.venv/lib/python3.8/site-packages/flask/_compat.py", line 35, in reraise
    raise value
  File "/opt/code/localstack/.venv/lib/python3.8/site-packages/flask/app.py", line 2292, in wsgi_app
    response = self.full_dispatch_request()
  File "/opt/code/localstack/.venv/lib/python3.8/site-packages/flask/app.py", line 1815, in full_dispatch_request
    rv = self.handle_user_exception(e)
  File "/opt/code/localstack/.venv/lib/python3.8/site-packages/flask_cors/extension.py", line 161, in wrapped_function
    return cors_after_request(app.make_response(f(*args, **kwargs)))
  File "/opt/code/localstack/.venv/lib/python3.8/site-packages/flask/app.py", line 1718, in handle_user_exception
    reraise(exc_type, exc_value, tb)
  File "/opt/code/localstack/.venv/lib/python3.8/site-packages/flask/_compat.py", line 35, in reraise
    raise value
  File "/opt/code/localstack/.venv/lib/python3.8/site-packages/flask/app.py", line 1813, in full_dispatch_request
    rv = self.dispatch_request()
  File "/opt/code/localstack/.venv/lib/python3.8/site-packages/flask/app.py", line 1799, in dispatch_request
    return self.view_functions[rule.endpoint](**req.view_args)
  File "/opt/code/localstack/.venv/lib/python3.8/site-packages/moto/core/utils.py", line 146, in __call__
    result = self.callback(request, request.url, {})
  File "/opt/code/localstack/.venv/lib/python3.8/site-packages/moto/core/responses.py", line 197, in dispatch
    return cls()._dispatch(*args, **kwargs)
  File "/opt/code/localstack/.venv/lib/python3.8/site-packages/moto/core/responses.py", line 295, in _dispatch
    return self.call_action()
  File "/opt/code/localstack/.venv/lib/python3.8/site-packages/moto/core/responses.py", line 380, in call_action
    response = method()
  File "/opt/code/localstack/.venv/lib/python3.8/site-packages/moto/cloudformation/responses.py", line 268, in update_stack
    stack_body = self._get_stack_from_s3_url(template_url)
  File "/opt/code/localstack/.venv/lib/python3.8/site-packages/moto/cloudformation/responses.py", line 40, in _get_stack_from_s3_url
    return key.value.decode("utf-8")

┆Issue is synchronized with this Jira Task by Unito

Mar 08 '20 21:03 jgrisafe

Thanks for reporting @jgrisafe . Can you please provide a small, isolated example (serverless.yml file) to help reproduce this issue? Also, we've made some changes to CloudFormation in LocalStack recently - can you please give it another try after doing a docker pull localstack/localstack. Thanks

Mar 15 '20 02:03 whummer

Closing the issue due to inactivity. It should be resolved using the latest localstack version. Please reach out if you still encounter any issues.

Oct 13 '23 15:10 steffyP