Typescript compile errors when using 1.20.0 or 1.19.0

[bo67192]

I'm first tried to run cdk deploy <stack_name>, and I was seeing several errors like

node_modules/@aws-cdk/aws-codepipeline-actions/lib/action.d.ts:31:17 - error TS7033: Property 'pipeline' implicitly has type 'any', because its get accessor lacks a return type annotation.

31     private get pipeline();

When I pin to version 1.18.0 npm run build works fine.

Reproduction Steps

Here is my package.json

{
  "name": "dt-tsplus-infra",
  "version": "0.1.0",
  "bin": {
    "dt-tsplus-infra": "bin/dt-tsplus-infra.js"
  },
  "scripts": {
    "build": "tsc",
    "watch": "tsc -w",
    "test": "jest",
    "cdk": "cdk"
  },
  "devDependencies": {
    "@aws-cdk/assert": "1.18.0",
    "@types/jest": "^24.0.25",
    "aws-cdk": "1.18.0",
    "jest": "^24.9.0",
    "ts-jest": "^24.3.0",
    "ts-node": "^8.5.4",
    "typescript": "~3.6.2"
  },
  "dependencies": {
    "@aws-cdk/aws-codebuild": "1.18.0",
    "@aws-cdk/aws-codedeploy": "1.18.0",
    "@aws-cdk/aws-codepipeline": "1.18.0",
    "@aws-cdk/aws-codepipeline-actions": "1.18.0",
    "@aws-cdk/aws-ec2": "1.18.0",
    "@aws-cdk/aws-elasticloadbalancingv2": "1.18.0",
    "@aws-cdk/aws-iam": "1.18.0",
    "@aws-cdk/aws-route53": "1.18.0",
    "@aws-cdk/aws-s3": "1.18.0",
    "@aws-cdk/aws-ssm": "1.18.0",
    "@aws-cdk/core": "1.18.0",
    "source-map-support": "^0.5.9"
  }
}

And then I'm importing and creating a pipeline.

Error Log

tsc

node_modules/@aws-cdk/aws-codepipeline-actions/lib/action.d.ts:31:17 - error TS7033: Property 'pipeline' implicitly has type 'any', because its get accessor lacks a return type annotation.

31     private get pipeline();
                   ~~~~~~~~

node_modules/@aws-cdk/aws-codepipeline-actions/lib/action.d.ts:32:17 - error TS7033: Property 'stage' implicitly has type 'any', because its get accessor lacks a return type annotation.

32     private get stage();
                   ~~~~~

node_modules/@aws-cdk/aws-codepipeline-actions/lib/action.d.ts:38:17 - error TS7033: Property 'scope' implicitly has type 'any', because its get accessor lacks a return type annotation.

38     private get scope();
                   ~~~~~

node_modules/@aws-cdk/aws-codepipeline/lib/pipeline.d.ts:239:17 - error TS7033: Property 'crossRegion' implicitly has type 'any', because its get accessor lacks a return type annotation.

239     private get crossRegion();
                    ~~~~~~~~~~~

node_modules/@aws-cdk/aws-ecs/lib/base/base-service.d.ts:321:17 - error TS7033: Property 'defaultLoadBalancerTarget' implicitly has type 'any', because its get accessor lacks a return type
annotation.

321     private get defaultLoadBalancerTarget();
                    ~~~~~~~~~~~~~~~~~~~~~~~~~

node_modules/@aws-cdk/core/lib/stack.d.ts:425:17 - error TS7033: Property 'assetParameters' implicitly has type 'any', because its get accessor lacks a return type annotation.

425     private get assetParameters();
                    ~~~~~~~~~~~~~~~


Found 6 errors.

npm ERR! code ELIFECYCLE
npm ERR! errno 2
npm ERR! [email protected] build: `tsc`
npm ERR! Exit status 2
npm ERR!
npm ERR! Failed at the [email protected] build script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     /root/.npm/_logs/2020-01-08T17_34_36_548Z-debug.log
root@5d5b25b963ef:/dt-tsplus-infra/cdk# exit
exit

Environment

• CLI Version :1.20.0
• Framework Version: 1.18.0
• OS : Windows 10
• Language : typescript

Other

---

This is 🐛 Bug Report

[skinny85]

Hey @bo67192 ,

if your version have ^ (like "@aws-cdk/aws-codepipeline": "^1.18.0"), see #5497 .

Thanks,
Adam

[bo67192]

Changing my devDependencies typescript entry to

^3.7

Fixed the problem. Should I close this issue?