Typescript transpilation fails

After upgrading the library from 2.19.0 to 2.19.3 the Typescript transpilation started to fail with the following error message

node_modules/@google-cloud/pubsub/build/protos/protos.d.ts:15:23 - error TS2497: This module can only be referenced with ECMAScript imports/exports by turning on the 'esModuleInterop' flag and referencing its default export.

15 import * as Long from "long";
                         ~~~~~~

node_modules/google-gax/build/protos/iam_service.d.ts:17:23 - error TS2497: This module can only be referenced with ECMAScript imports/exports by turning on the 'esModuleInterop' flag and referencing its default export.

17 import * as Long from 'long';
                         ~~~~~~

node_modules/google-gax/build/protos/operations.d.ts:17:23 - error TS2497: This module can only be referenced with ECMAScript imports/exports by turning on the 'esModuleInterop' flag and referencing its default export.

17 import * as Long from 'long';
                         ~~~~~~


Found 3 errors in 3 files.

Environment details

• OS: macOS Monterey 12.3.1
• Node.js version: 14.17.4
• npm version: 6.14.14
• @google-cloud/pubsub version: 2.19.3

Steps to reproduce

1. Install typescript and @google-cloud/pubsub latest

import { PubSub, Topic } from '@google-cloud/pubsub';
console.log(PubSub, Topic);

1. Transpile the above code with latest Typescript

Created an example repository, just have to clone, install and run npm run build. Setting the flag esModuleInterop to true doesn’t solve the issue.

[vuesomedev]

For a temporal solution, this worked in package.json:

"overrides": {
  "long": "4.0.0"
}

[feywind]

Ah right, it was probably related to this: https://github.com/grpc/grpc-node/pull/2110