TS - Argument of type 'this' is not assignable to parameter of type 'Construct'

I have a created a simple Stack that creates a VPC with three simple subnets. though I receive the error Argument of type ‘this’ is not assignable to parameter of type ‘Construct’ . When I use any other resource like S3 or SQS I do not receive the error. As of now, it happens only with VpcNetwork. The typescript code is as follows

cdk version: 0.8.0 (build bb95676) node version: 10.3.0

import * as cdk from '@aws-cdk/cdk'
import { VpcNetwork, SubnetType } from '@aws-cdk/aws-ec2'

class MyStack extends cdk.Stack {
    constructor(parent: cdk.App, name: string, props?: cdk.StackProps) {
        super(parent, name, props);

        new VpcNetwork(this, 'MyVPC', {
            cidr: '10.0.0.0/21',
            subnetConfiguration: [
              {
                cidrMask: 24,
                name: 'Ingress',
                subnetType: SubnetType.Public,
                natGateway: true,
              },
              {
                cidrMask: 24,
                name: 'Application',
                subnetType: SubnetType.Private,
              },
              {
                cidrMask: 28,
                name: 'Database',
                subnetType: SubnetType.Isolated,
              }
            ],
        });
    }
}

const app = new cdk.App(process.argv);
new MyStack(app, 'MyStack');
process.stdout.write(app.run());

[eladb]

Hi @benswinburne, I believe this is caused by the fact that your package.json file has mixed versions of the CDK (@aws-cdk/cdk is at 0.20.0 and @aws-cdk/aws-* are at 0.21.0):

{
  "dependencies": {
    "@aws-cdk/aws-ec2": "^0.21.0",
    "@aws-cdk/aws-ecs": "^0.21.0",
    "@aws-cdk/cdk": "^0.20.0"
  }
}

Try to upgrade everything to 0.21.0 and let us know if the issue still persists.

[eladb]

As mentioned above, this is usually caused by having more than a single version of the CDK in your node modules.

1. Make sure your package.json lists the same version.
2. Nuke node_modules
3. Run npm install again