Why am I receiving a PERMISSION_DENIED error when creating a Cloud Tasks queue in Node.js?

I'm developing a Node.js application and trying to create a queue using Google Cloud Tasks, but I encounter the following error:

Error: 7 PERMISSION_DENIED: The principal (user or service account) lacks IAM permission "cloudtasks.queues.create" for the resource "projects/XXXXXX/locations/europe-central2" (or the resource may not exist).

Steps I've Taken:

1- Service Account Creation: I created a service account and assigned it the "Cloud Tasks Queue Admin" role (roles/cloudtasks.queueAdmin), which includes the cloudtasks.queues.create permission.

2- Client Configuration: I configured the Cloud Tasks client in my code as follows:

JAVASCRIPTCopied
const { CloudTasksClient } = require('@google-cloud/tasks');
const clientCloudTasks = new CloudTasksClient({
  keyFilename: "./serviceAccountKey.json",
});

3- Queue Creation Attempt: I attempted to create a queue with this code:

JAVASCRIPTCopied
const queuePath = clientCloudTasks.queuePath('my-project-id', 'europe-central2', 'my-queue-id');

const queue = {
  name: queuePath,
  rateLimits: {
    maxDispatchesPerSecond: 1,
  },
};

const request = {
  parent: clientCloudTasks.locationPath('my-project-id', 'europe-central2'),
  queue: queue,
};

await clientCloudTasks.createQueue(request);

Additional Details:

• I verified that the "Cloud Tasks Queue Admin" role includes the cloudtasks.queues.create permission.
• The service account is correctly configured, and the JSON key file is properly referenced in the code.
• The specified project and location exist and are correctly referenced.

Question:

Why am I receiving this permission error despite the configurations made?

Thank you in advance for your assistance!