Cannot find name 'GlobalFetch despite having proper TS version

Question

I am fresh building a web app repository using React/TypeScript and the app works but deployment fails:

> build:dev
> SNOWPACK_PUBLIC_APP_ENVIRONMENT=dev snowpack build

[@snowpack/plugin-typescript] src/api/runtime.ts(130,24): error TS2304: Cannot find name 'GlobalFetch'.
[@snowpack/plugin-typescript] Error: Command failed with exit code 2: tsc --noEmit
src/api/runtime.ts(130,24): error TS2304: Cannot find name 'GlobalFetch'.

Weird is the project is working on another machine, so it is not a new development, there were no source code change. SO answers on "GlobalFetch" say there was a problem with it in some 3.x version of type script, but I see the version installed has higher one:

version "4.2.3"

Any ideas on where to look for a reason?

score 0 · Answer 1 · answered Jul 10 '23 at 08:26

0

The GlobalFetch type was removed from the definitions in TS 3.6.

Your other dev environment probably uses an old version of TS.

You either have to

downgrade your TS version
remove the GlobalFetch type in your code base
recreate the type with: declare type GlobalFetch = WindowOrWorkerGlobalScope

answered Jul 10 '23 at 08:26

Matthieu Riegler

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Thanks. I am only concerned with "probably". I can see and compare both environments and yarn.lock is identical. How can another machine use different TS version? – Andy Victors Jul 10 '23 at 08:44
is `typescript` defined in the dependencies ? What does `tsc --version` outputs ? – Matthieu Riegler Jul 10 '23 at 08:47
"tsc command not found". Are you saying there is TS version in packages.json and one installed locally?? – Andy Victors Jul 11 '23 at 14:58
There can be a global tsc yes – Matthieu Riegler Jul 11 '23 at 15:57

Cannot find name 'GlobalFetch despite having proper TS version

1 Answers1