AWS SAM API endpoint using a Lambda is throwing error when it runs locally with "sam start local-api" - node.js

Question

I am building a simple API endpoint using AWS Lambda function and API Gateway. I am orchestrating those resources using SAM. I can deploy my function to the AWS cloud and access the endpoint. It's working as expected.
Here is my lambda function.
exports.lambdaHandler = async (event) => ({
statusCode: 200,
body: {
message: `Hello World!`
}
})
Here is my SAM CloudFormation template
AWSTemplateFormatVersion: '2010-09-09'
Transform: AWS::Serverless-2016-10-31
Description: HTTP API
Globals:
Function:
Timeout: 5
Handler: app.lambdaHandler
Runtime: nodejs16.x
Resources:
LambdaFunction:
Type: AWS::Serverless::Function
Properties:
CodeUri: src/
Events:
Api:
Type: Api
Properties:
Path: /
Method: GET
Outputs:
WebEndpoint:
Description: "API Gateway endpoint URL for Prod stage"
Value: !Sub "https://${ServerlessRestApi}.execute-api.${AWS::Region}.amazonaws.com/Prod/"
But I am getting the error when I run the endpoint locally in the Docker container.
I run the following command to run the API locally.
sam build --use-container && sam local start-api
When I run that, the docker image was build successfully and there is no error in the console. In the console, it gives me a local endpoint, http://127.0.0.1:3000/.
When I visit the endpoint in the browser, I am getting this response.
{"message":"Internal server error"}
I also seeing the following errors in the console.
Invoking app.lambdaHandler (nodejs16.x)
Image was not found.
Removing rapid images for repo public.ecr.aws/sam/emulation-nodejs16.x
Building image........................
Failed to build Docker Image
NoneType: None
Exception on / [GET]
Traceback (most recent call last):
File "/opt/homebrew/Cellar/aws-sam-cli/1.70.0/libexec/lib/python3.11/site-packages/flask/app.py", line 2073, in wsgi_app
response = self.full_dispatch_request()
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/homebrew/Cellar/aws-sam-cli/1.70.0/libexec/lib/python3.11/site-packages/flask/app.py", line 1518, in full_dispatch_request
rv = self.handle_user_exception(e)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/homebrew/Cellar/aws-sam-cli/1.70.0/libexec/lib/python3.11/site-packages/flask/app.py", line 1516, in full_dispatch_request
rv = self.dispatch_request()
^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/homebrew/Cellar/aws-sam-cli/1.70.0/libexec/lib/python3.11/site-packages/flask/app.py", line 1502, in dispatch_request
return self.ensure_sync(self.view_functions[rule.endpoint])(**req.view_args)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/homebrew/Cellar/aws-sam-cli/1.70.0/libexec/lib/python3.11/site-packages/samcli/local/apigw/local_apigw_service.py", line 361, in _request_handler
self.lambda_runner.invoke(route.function_name, event, stdout=stdout_stream_writer, stderr=self.stderr)
File "/opt/homebrew/Cellar/aws-sam-cli/1.70.0/libexec/lib/python3.11/site-packages/samcli/commands/local/lib/local_lambda.py", line 137, in invoke
self.local_runtime.invoke(
File "/opt/homebrew/Cellar/aws-sam-cli/1.70.0/libexec/lib/python3.11/site-packages/samcli/lib/telemetry/metric.py", line 315, in wrapped_func
return_value = func(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^
File "/opt/homebrew/Cellar/aws-sam-cli/1.70.0/libexec/lib/python3.11/site-packages/samcli/local/lambdafn/runtime.py", line 177, in invoke
container = self.create(function_config, debug_context, container_host, container_host_interface)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/homebrew/Cellar/aws-sam-cli/1.70.0/libexec/lib/python3.11/site-packages/samcli/local/lambdafn/runtime.py", line 73, in create
container = LambdaContainer(
^^^^^^^^^^^^^^^^
File "/opt/homebrew/Cellar/aws-sam-cli/1.70.0/libexec/lib/python3.11/site-packages/samcli/local/docker/lambda_container.py", line 93, in __init__
image = LambdaContainer._get_image(
^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/homebrew/Cellar/aws-sam-cli/1.70.0/libexec/lib/python3.11/site-packages/samcli/local/docker/lambda_container.py", line 236, in _get_image
return lambda_image.build(runtime, packagetype, image, layers, architecture, function_name=function_name)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/homebrew/Cellar/aws-sam-cli/1.70.0/libexec/lib/python3.11/site-packages/samcli/local/docker/lambda_image.py", line 164, in build
self._build_image(
File "/opt/homebrew/Cellar/aws-sam-cli/1.70.0/libexec/lib/python3.11/site-packages/samcli/local/docker/lambda_image.py", line 279, in _build_image
raise ImageBuildException("Error building docker image: {}".format(log["error"]))
samcli.commands.local.cli_common.user_exceptions.ImageBuildException: Error building docker image: The command '/bin/sh -c mv /var/rapid/aws-lambda-rie-x86_64 /var/rapid/aws-lambda-rie && chmod +x /var/rapid/aws-lambda-rie' returned a non-zero code: 1
2023-01-21 09:29:27 127.0.0.1 - - [21/Jan/2023 09:29:27] "GET / HTTP/1.1" 502 -
2023-01-21 09:29:27 127.0.0.1 - - [21/Jan/2023 09:29:27] "GET /favicon.ico HTTP/1.1" 403 -
What is wrong with my code and how can I fix it?

Answer 1

We had a similar problem only on MacOS so if you are using MacOS this might help you (there is homebrew in your error response so i guess you are)
In our case aws-sam-cli was installed via brew.
What we did was deleting aws-sam-cli and installed it via Command Line - All users using arm64.pkg
https://docs.aws.amazon.com/serverless-application-model/latest/developerguide/install-sam-cli.html
After that we got
=== ERROR: Error: Protocol error (Target.setDiscoverTargets): Target closed.
but this might be related to our project only.