"chalice deploy" call ends up with "Unknown parameter in input: "Layers""

Question

I create the most basic chalice app

from chalice import Chalice

app = Chalice(app_name='testApp')


@app.route('/')
def index():
    return {'hello': 'world'}

with empty requirements.txt and config that looks like this:

{
  "version": "2.0",
  "app_name": "testApp",
  "stages": {
    "dev": {
      "api_gateway_stage": "api"
    }
  }
}

Error fires right after the first deploy

This is the error i receive:

Creating deployment package. Updating policy for IAM role: testApp-dev Updating lambda function: testApp-dev Traceback (most recent call last): File "c:\users\vic\appdata\local\programs\python\python37-32\lib\site-packages\chalice\cli__init__.py", line 466, in main return cli(obj={}) File "c:\users\vic\appdata\local\programs\python\python37-32\lib\site-packages\click\core.py", line 722, in call return self.main(*args, **kwargs) File "c:\users\vic\appdata\local\programs\python\python37-32\lib\site-packages\click\core.py", line 697, in main rv = self.invoke(ctx) File "c:\users\vic\appdata\local\programs\python\python37-32\lib\site-packages\click\core.py", line 1066, in invoke return _process_result(sub_ctx.command.invoke(sub_ctx)) File "c:\users\vic\appdata\local\programs\python\python37-32\lib\site-packages\click\core.py", line 895, in invoke return ctx.invoke(self.callback, **ctx.params) File "c:\users\vic\appdata\local\programs\python\python37-32\lib\site-packages\click\core.py", line 535, in invoke return callback(*args, **kwargs) File "c:\users\vic\appdata\local\programs\python\python37-32\lib\site-packages\click\decorators.py", line 17, in new_func return f(get_current_context(), *args, **kwargs) File "c:\users\vic\appdata\local\programs\python\python37-32\lib\site-packages\chalice\cli__init__.py", line 202, in deploy deployed_values = d.deploy(config, chalice_stage_name=stage) File "c:\users\vic\appdata\local\programs\python\python37-32\lib\site-packages\chalice\deploy\deployer.py", line 342, in deploy return self._deploy(config, chalice_stage_name) File "c:\users\vic\appdata\local\programs\python\python37-32\lib\site-packages\chalice\deploy\deployer.py", line 355, in _deploy self._executor.execute(plan) File "c:\users\vic\appdata\local\programs\python\python37-32\lib\site-packages\chalice\deploy\executor.py", line 31, in execute self._default_handler)(instruction) File "c:\users\vic\appdata\local\programs\python\python37-32\lib\site-packages\chalice\deploy\executor.py", line 43, in _do_apicall result = method(**final_kwargs) File "c:\users\vic\appdata\local\programs\python\python37-32\lib\site-packages\chalice\awsclient.py", line 283, in update_function layers=layers File "c:\users\vic\appdata\local\programs\python\python37-32\lib\site-packages\chalice\awsclient.py", line 352, in _update_function_config max_attempts=self.LAMBDA_CREATE_ATTEMPTS File "c:\users\vic\appdata\local\programs\python\python37-32\lib\site-packages\chalice\awsclient.py", line 1009, in _call_client_method_with_retries response = method(**kwargs) File "c:\users\vic\appdata\local\programs\python\python37-32\lib\site-packages\botocore\client.py", line 314, in _api_call return self._make_api_call(operation_name, kwargs) File "c:\users\vic\appdata\local\programs\python\python37-32\lib\site-packages\botocore\client.py", line 586, in _make_api_call api_params, operation_model, context=request_context) File "c:\users\vic\appdata\local\programs\python\python37-32\lib\site-packages\botocore\client.py", line 621, in _convert_to_request_dict api_params, operation_model) File "c:\users\vic\appdata\local\programs\python\python37-32\lib\site-packages\botocore\validate.py", line 291, in serialize_to_request raise ParamValidationError(report=report.generate_report()) botocore.exceptions.ParamValidationError: Parameter validation failed:

Unknown parameter in input: "Layers", must be one of: FunctionName, Role, Handler, Description, Timeout, MemorySize, VpcConfig, Environment, Runtime, DeadLetterConfig, KMSKeyArn, TracingConfig, RevisionId

Answer 1

After troubleshooting found some issues with my local configurations. What helped was running the chalice in virtualenv (https://virtualenv.pypa.io/en/latest/)