aws_apigatewayv2_integrations_1.LambdaProxyIntegration is not a constructor

[oscarnevarezleal]

After following the steps described in README I cannot get CDK to synthesize the application.

• Cdk version is 2.12.0 (build c9786db)
• CLI message shown below

$ cdk diff
aws_apigatewayv2_integrations_1.LambdaProxyIntegration is not a constructor
Subprocess exited with error 1

package.json

{
  "name": "cdk",
  "version": "0.1.0",
  "bin": {
    "cdk": "bin/cdk.js"
  },
  "scripts": {
    "build": "tsc",
    "watch": "tsc -w",
    "test": "jest",
    "cdk": "cdk"
  },
  "devDependencies": {
    "@types/jest": "^26.0.10",
    "@types/node": "10.17.27",
    "aws-cdk": "2.12.0",
    "jest": "^26.4.2",
    "ts-jest": "^26.2.0",
    "ts-node": "^9.0.0",
    "typescript": "~3.9.7"
  },
  "dependencies": {
    "aws-cdk-lib": "2.12.0",
    "cdk-serverless-lamp": "^1.4.52",
    "constructs": "^10.0.0",
    "source-map-support": "^0.5.16"
  }
}