"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);

Charlie · Accepted Answer · 2022-11-22 17:51:15Z

12

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

In your package.json dependencies section add "long":"4.0.0",
In your package.json devDependencies section: add "@types/long":"4.0.0",
Finally, in tsconfig.json (add to tsconfig.app.js if that doesn't work) (or in the tsc command line) add:

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

edited Nov 22, 2022 at 17:51

Charlie

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answered Sep 29, 2019 at 20:53

gae123

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3 Comments

cristianmiranda Over a year ago

This worked. Is there an official fix or something?. Thanks!

gae123 Over a year ago

I have no idea, from what I read I have concluded that the Google Cloud node libraries team quickly jumps to the latest typescript compiler for their modules without thinking through the implications to users who use their modules with older versions of the Typescript compiler. Hopefully, as long as you keep upgrading your Typescript compiler as well the issue will go away. And hopefully they will become more sensitive to such issues.

Bebhav Soni Over a year ago

now this solution is not working :(

Jordan Lim · Accepted Answer · 2022-12-09 09:12:40Z

6

gae123 suggestion did not work for me on typescript version 4.9.4. I added the following to tsconfig.json. Hope this helps.

"compilerOptions":{
      ...
      "skipLibCheck": true,
}

answered Dec 9, 2022 at 9:12

Jordan Lim

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Comments

Tyler2P · Accepted Answer · 2022-05-16 15:24:11Z

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!

edited May 16, 2022 at 15:24

Tyler2P

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answered May 16, 2022 at 9:04

user5996431

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