Bug: sam local start-api - AttributeError

[Khushmohitkar]

Description:

Steps to reproduce:

Observed result:

Expected result:

Additional environment details (Ex: Windows, Mac, Amazon Linux etc)

1. OS:
2. sam --version:
3. AWS region:

# Paste the output of `sam --info` here

Add --debug flag to command you are running

[Khushmohitkar]

{hawcc}:/workspace/home-inv-app/back-end$ sam local start-api
No current session found, using default AWS::AccountId
Initializing the lambda functions containers.
Local image is up-to-date
Using local image: public.ecr.aws/lambda/python:3.9-rapid-x86_64.

Mounting /workspace/home-inv-app/back-end as /var/task:ro,delegated, inside runtime container
Containers Initialization is done.

Error: 'NoneType' object has no attribute 'items'
Traceback:
File "click/core.py", line 1078, in main
File "click/core.py", line 1688, in invoke
File "click/core.py", line 1688, in invoke
File "click/core.py", line 1434, in invoke
File "click/core.py", line 783, in invoke
File "samcli/cli/cli_config_file.py", line 347, in wrapper
File "click/decorators.py", line 92, in new_func
File "click/core.py", line 783, in invoke
File "samcli/lib/telemetry/metric.py", line 185, in wrapped
File "samcli/lib/telemetry/metric.py", line 150, in wrapped
File "samcli/lib/utils/version_checker.py", line 43, in wrapped
File "samcli/cli/main.py", line 95, in wrapper
File "samcli/commands/local/start_api/cli.py", line 150, in cli
File "samcli/commands/local/start_api/cli.py", line 258, in do_cli
File "samcli/commands/local/lib/local_api_service.py", line 42, in init
File "samcli/lib/providers/api_provider.py", line 40, in init
File "samcli/lib/providers/api_provider.py", line 67, in _extract_api
File "samcli/lib/providers/sam_api_provider.py", line 78, in extract_resources
File "samcli/lib/providers/sam_api_provider.py", line 436, in _extract_routes_from_function
File "samcli/lib/providers/sam_api_provider.py", line 470, in extract_routes_from_events

An unexpected error was encountered while executing "sam local start-api".
Search for an existing issue:
https://github.com/aws/aws-sam-cli/issues?q=is%3Aissue+is%3Aopen+Bug%3A%20sam%20local%20start-api%20-%20AttributeError
Or create a bug report:
https://github.com/aws/aws-sam-cli/issues/new?template=Bug_report.md&title=Bug%3A%20sam%20local%20start-api%20-%20AttributeError

[valerena]

Would you be able to share the SAM template that you're using to run the command? I've seen in the past when there's a template with some malformed resources, or wrong indentation in the YAML file.

There's was also a transient issue with the same error message a few years back (on sam deploy instead of sam local start-api : #6014), that didn't have a way to be reproduced consistently. If you can share your template (please redact and/or change any sensitive information in it), maybe we can see if it's an issue that we can reproduce and troubleshoot.