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TypeError: files.at is not a function | Setting up dev environment

See original GitHub issue

The problem

I tried to start development in my Windows system, but I got this error.

PS D:\projects\desktop> yarn
yarn install v1.21.1
[1/5] Validating package.json...
[2/5] Resolving packages...
[3/5] Fetching packages...
info fsevents@2.2.1: The platform "win32" is incompatible with this module.
info "fsevents@2.2.1" is an optional dependency and failed compatibility check. Excluding it from installation.
info fsevents@2.1.3: The platform "win32" is incompatible with this module.
info "fsevents@2.1.3" is an optional dependency and failed compatibility check. Excluding it from installation.
[4/5] Linking dependencies...
warning " > parallel-webpack@2.3.0" has incorrect peer dependency "webpack@^1.12.9 || ^2.2.0 || ^3.x || ^4.x".
[5/5] Building fresh packages...
$ ts-node -P script/tsconfig.json script/post-install.ts

D:\projects\desktop\node_modules\once\once.js:25
    return f.value = fn.apply(this, arguments)
                        ^
TypeError: files.at is not a function
    at D:\projects\desktop\script\post-install.ts:26:57
    at f (D:\projects\desktop\node_modules\once\once.js:25:25)
    at Glob.<anonymous> (D:\projects\desktop\node_modules\glob\glob.js:151:7)
    at Glob.emit (events.js:400:28)
    at Glob.emit (domain.js:475:12)
    at Glob._finish (D:\projects\desktop\node_modules\glob\glob.js:197:8)
    at done (D:\projects\desktop\node_modules\glob\glob.js:182:14)
    at Glob._processReaddir2 (D:\projects\desktop\node_modules\glob\glob.js:434:12)
    at D:\projects\desktop\node_modules\glob\glob.js:371:17
    at RES (D:\projects\desktop\node_modules\inflight\inflight.js:31:16)
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/install for documentation about this command.

Release version

Development

Operating system

Microsoft Windows 10 Home Single Language | 10.0.19044 | 19041.1.amd64fre.vb_release.191206-1406

Steps to reproduce the behavior

git clone https://github.com/desktop/desktop.git
yarn

I didn’t have to install any other tools, as I already had them installed.

Log files

No response

Screenshots

Additional context

PS D:\projects\desktop> node -v
v14.18.0
PS D:\projects\desktop> nvm v
1.1.9
PS D:\projects\desktop> python --version
Python 3.9.7

I have been following this documentation: https://github.com/desktop/desktop/blob/development/docs/contributing/setup-windows.md

Issue Analytics

State:
Created a year ago
Comments:8 (8 by maintainers)

Top GitHub Comments

2reactions

niikcommented, Aug 12, 2022

Hey @maifeeulasad, thanks for reaching out! It looks like you are using an older version of Node.js than what’s required.

PS D:\projects\desktop> node -v
v14.18.0

We’re currently using 16.13.0 (see .node-version) which is necessary to support the new .at method for arrays. We’ve begun it (Array.prototype.at) in a number of places already and we expect to use it more and more so we’re not keen on reverting those changes.

Please install Node 16.13.0 (either globally or using a version manager, see https://github.com/desktop/desktop/blob/node-16-recommendation/docs/contributing/setup-windows.md#i-need-to-use-different-versions-of-nodejs-in-different-projects

I’m going to close this issue but let us know if upgrading Node didn’t solve your issue and we’ll continue troubleshooting.

xref https://github.com/desktop/desktop/pull/14907

1reaction

maifeeulasadcommented, Aug 13, 2022

Thanks, @niik, it worked.

And really appreciate your help, @tsvetilian-ty.