(AWS-CDK): (not able to run the CDK synth command on local machine)

[rameshjoshi13]

Describe the bug

I have the below version for my aws-cdk

D:\AWS_PYTHON_CDK>npm --version 10.5.2

D:\AWS_PYTHON_CDK>node --version v20.12.2

D:\AWS_PYTHON_CDK>python --version Python 3.12.3

D:\AWS_PYTHON_CDK>aws --version aws-cli/2.15.40 Python/3.11.8 Windows/10 exe/AMD64 prompt/off

D:\AWS_PYTHON_CDK>cdk --version 2.138.0 (build 6b41c8b)

I am able to create a python cdk project inside the AWS_PYTHON_CDK folder using cdk init and the requirement.txt file is showing the dependencies to be installed as aws-cdk-lib==2.138.0 constructs>=10.0.0,<11.0.0

but when I am trying to do cdk synth its throwing error, the error trace is as below.

D:\AWS_PYTHON_CDK>cdk synth Traceback (most recent call last): File "D:\AWS_PYTHON_CDK\app.py", line 4, in import aws_cdk as cdk File "C:\Users\abc\AppData\Local\Programs\Python\Python312\Lib\site-packages\aws_cdk_init_.py", line 1511, in from .jsii import * File "C:\Users\abc\AppData\Local\Programs\Python\Python312\Lib\site-packages\aws_cdk_jsii_init.py", line 21, in jsii_assembly = jsii.JSIIAssembly.load( ^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\abc\AppData\Local\Programs\Python\Python312\Lib\site-packages\jsii_runtime.py", line 55, in load kernel.load(assembly.name, assembly.version, os.fspath(assembly_path)) File "C:\Users\abc\AppData\Local\Programs\Python\Python312\Lib\site-packages\jsii_kernel_init.py", line 299, in load self.provider.load(LoadRequest(name=name, version=version, tarball=tarball)) File "C:\Users\abc\AppData\Local\Programs\Python\Python312\Lib\site-packages\jsii_kernel\providers\process.py", line 354, in load return self._process.send(request, LoadResponse) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\abc\AppData\Local\Programs\Python\Python312\Lib\site-packages\jsii_kernel\providers\process.py", line 332, in send self._next_message(), _ProcessResponse ^^^^^^^^^^^^^^^^^^^^ File "C:\Users\abc\AppData\Local\Programs\Python\Python312\Lib\site-packages\jsii_kernel\providers\process.py", line 251, in _next_message return json.loads(self.process.stdout.readline(), object_hook=ohook) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\abc\AppData\Local\Programs\Python\Python312\Lib\json_init.py", line 359, in loads return cls(**kw).decode(s) ^^^^^^^^^^^^^^^^^^^ File "C:\Users\abc\AppData\Local\Programs\Python\Python312\Lib\json\decoder.py", line 337, in decode obj, end = self.raw_decode(s, idx=_w(s, 0).end()) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\abc\AppData\Local\Programs\Python\Python312\Lib\json\decoder.py", line 355, in raw_decode raise JSONDecodeError("Expecting value", s, err.value) from None json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0) Exception ignored in atexit callback: <bound method _NodeProcess.stop of <jsii._kernel.providers.process._NodeProcess object at 0x000002830E43D880>> Traceback (most recent call last): File "C:\Users\abc\AppData\Local\Programs\Python\Python312\Lib\site-packages\jsii_kernel\providers\process.py", line 295, in stop self._process.stdin.close() OSError: [Errno 22] Invalid argument

Expected Behavior

It should generate the output instead of throwing error.

Current Behavior

Its throwing an error on executing command "cdk synth" as mentioned above in the description

Reproduction Steps

Run command - cdk synth

Possible Solution

No response

Additional Information/Context

I have configure AWS properly and have confirmed by running the command
aws sts get-caller-identity and got response in below format.
{
"UserId": "AID************",
"Account": "767********",
"Arn": "arn:aws:iam::767********:user/testuser"
}

CDK CLI Version

2.138.0

Framework Version

No response

Node.js Version

v20.12.2

OS

windows 10

Language

Python

Language Version

No response

Other information

No response

[ashishdhingra]

@rameshjoshi13 Good afternoon. Somehow I'm unable to reproduce the issue. Have you followed instructions at the below documentation properly:

• Getting started with the AWS CDK
  • Configuring AWs account
  • Installing Nodejs
  • Install the AWS CDK CLI
  • Bootstrapping your environment
• Working with the AWS CDK in Python
  • Installing Python
  • Creating project
  • Activating virtual environment
  • Installing the app's standard dependencies (using python -m pip install -r requirements.txt)

I was able to follow the instructions to the point and cdk synth successfully generated the below CloudFormation template (My command prompt looks something like (.venv) D:\source\repros\cdk\issue29945_python>cdk synth):

Resources:
  CDKMetadata:
    Type: AWS::CDK::Metadata
    Properties:
      Analytics: v2:deflate64:H4sIAAAAAAAA/zPSMzS21DNQTCwv1k1OydbNyUzSqw4uSUzO1nFOywtKLc4vLUpOBbGd8/NSMksy8/NqdQIqSzLy8/SN9QyN9IwVs4ozM3WLSvNKMnNT9YIgNABkjCGkVwAAAA==
    Metadata:
      aws:cdk:path: Issue29945PythonStack/CDKMetadata/Default
    Condition: CDKMetadataAvailable
Conditions:
  CDKMetadataAvailable:
    Fn::Or:
      - Fn::Or:
          - Fn::Equals:
              - Ref: AWS::Region
              - af-south-1
          - Fn::Equals:
              - Ref: AWS::Region
              - ap-east-1
          - Fn::Equals:
              - Ref: AWS::Region
              - ap-northeast-1
          - Fn::Equals:
              - Ref: AWS::Region
              - ap-northeast-2
          - Fn::Equals:
              - Ref: AWS::Region
              - ap-south-1
          - Fn::Equals:
              - Ref: AWS::Region
              - ap-southeast-1
          - Fn::Equals:
              - Ref: AWS::Region
              - ap-southeast-2
          - Fn::Equals:
              - Ref: AWS::Region
              - ca-central-1
          - Fn::Equals:
              - Ref: AWS::Region
              - cn-north-1
          - Fn::Equals:
              - Ref: AWS::Region
              - cn-northwest-1
      - Fn::Or:
          - Fn::Equals:
              - Ref: AWS::Region
              - eu-central-1
          - Fn::Equals:
              - Ref: AWS::Region
              - eu-north-1
          - Fn::Equals:
              - Ref: AWS::Region
              - eu-south-1
          - Fn::Equals:
              - Ref: AWS::Region
              - eu-west-1
          - Fn::Equals:
              - Ref: AWS::Region
              - eu-west-2
          - Fn::Equals:
              - Ref: AWS::Region
              - eu-west-3
          - Fn::Equals:
              - Ref: AWS::Region
              - il-central-1
          - Fn::Equals:
              - Ref: AWS::Region
              - me-central-1
          - Fn::Equals:
              - Ref: AWS::Region
              - me-south-1
          - Fn::Equals:
              - Ref: AWS::Region
              - sa-east-1
      - Fn::Or:
          - Fn::Equals:
              - Ref: AWS::Region
              - us-east-1
          - Fn::Equals:
              - Ref: AWS::Region
              - us-east-2
          - Fn::Equals:
              - Ref: AWS::Region
              - us-west-1
          - Fn::Equals:
              - Ref: AWS::Region
              - us-west-2
Parameters:
  BootstrapVersion:
    Type: AWS::SSM::Parameter::Value<String>
    Default: /cdk-bootstrap/hnb659fds/version
    Description: Version of the CDK Bootstrap resources in this environment, automatically retrieved from SSM Parameter Store. [cdk:skip]
Rules:
  CheckBootstrapVersion:
    Assertions:
      - Assert:
          Fn::Not:
            - Fn::Contains:
                - - "1"
                  - "2"
                  - "3"
                  - "4"
                  - "5"
                - Ref: BootstrapVersion
        AssertDescription: CDK bootstrap stack version 6 required. Please run 'cdk bootstrap' with a recent version of the CDK CLI.

Thanks,
Ashish

[github-actions]

This issue has not received a response in a while. If you want to keep this issue open, please leave a comment below and auto-close will be canceled.

[aws-cdk-automation]

Comments on closed issues and PRs are hard for our team to see. If you need help, please open a new issue that references this one.