"error TS2304: Cannot find name 'Long'" when compiling typescript with google api libraries

Question

I just added "@google-cloud/logging-winston":"2.1.0", in my pacakge.json and when I compile I get the following errors. I have seen this with other google libraries occasionally, and its root cause is most likely deeper in the stack in automatic generated types from protobuf definitions.

../node_modules/@google-cloud/logging/build/proto/logging.d.ts:1434:32 - error TS2304: Cannot find name 'Long'.

1434                 line?: (number|Long|null);
                                    ~~~~

../node_modules/@google-cloud/logging/build/proto/logging.d.ts:1453:38 - error TS2304: Cannot find name 'Long'.

1453                 public line: (number|Long);
                                          ~~~~

../node_modules/@google-cloud/logging/build/proto/logging.d.ts:1543:39 - error TS2304: Cannot find name 'Long'.

1543                 requestSize?: (number|Long|null);
                                           ~~~~

../node_modules/@google-cloud/logging/build/proto/logging.d.ts:1549:40 - error TS2304: Cannot find name 'Long'.

1549                 responseSize?: (number|Long|null);
                                            ~~~~

../node_modules/@google-cloud/logging/build/proto/logging.d.ts:1576:42 - error TS2304: Cannot find name 'Long'.

1576                 cacheFillBytes?: (number|Long|null);

Answer 1

Here is how I worked around this issue until it is taken care of.

1. In your package.json dependencies section add "long":"4.0.0",
2. In your package.json devDependencies section: add "@types/long":"4.0.0",
3. Finally, in tsconfig.json (or in the tsc command line) add:

{
   "compilerOptions": {
     ...
     "types": [
       ...
       "long"
     ],
   ...
}

Answer 2

I solved adding the long packet and @types/long, as gae123 suggested, but now the type is not to add in tsconfig.json but in tsconfig.app.json.

"compilerOptions": {
  ...
  "types": [...,"long"]
}

Thanks gae123!