Please add your +1 👍 to let us know you have encountered this

Status: IN-PROGRESS

Overview:

Describe the bug

Upgrading past v2.178.2 causes deployment of stack with existing (deployed with version <= 2.178.2) identity pool to fail.

Last Known Working CDK Version

2.178.2

Expected Behavior

Stack to deploy without issues.

Current Behavior

Deployment fails with the following error:

The stack named AwsCdkReproStack failed to deploy: UPDATE_ROLLBACK_COMPLETE: Resource handler returned message: "Resource of type 'AWS::Cognito::IdentityPoolRoleAttachment' with identifier 'eu-north-1:xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx' already exists." (RequestToken: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxxxxxx, HandlerErrorCode: AlreadyExists)

Reproduction Steps

npx aws-cdk@2.178.2 init app --language typescript

npm add @aws-cdk/aws-cognito-identitypool-alpha@2.178.2-alpha.0

Add an identity pool to the stack, e.g.:

import { IdentityPool } from "@aws-cdk/aws-cognito-identitypool-alpha";
import * as cdk from "aws-cdk-lib";
import { Construct } from "constructs";

export class AwsCdkReproStack extends cdk.Stack {
  constructor(scope: Construct, id: string, props?: cdk.StackProps) {
    super(scope, id, props);

    new IdentityPool(this, "IdentityPool");
  }
}

cdk deploy

npm i aws-cdk@2.179.0 aws-cdk-lib@2.179.0 @aws-cdk/aws-cognito-identitypool-alpha@2.179.0-alpha.0

cdk deploy

Workaround

Bump to the latest CDK library version, v2.181.1.

Possible Solution

No response

Additional Information/Context

No response

CDK CLI Version

2.179.0

Framework Version

No response

Node.js Version

22.14.0

OS

macOS 15.3.1

Language

TypeScript

Language Version

No response

Other information

No response