Extension cannot be installed with @quasar/[email protected]

[Grkmus]

What happened?

I am not able to invoke my extension in a quasar project. I got this error

App • Updating /quasar.extensions.json for "@vanoord/datalab" extension ...
/<directory>/node_modules/@quasar/app-webpack/lib/app-extension/create-app-ext.js:29
      stringifyJSON(json, { indent: fileExists ? undefined : 2 }),
                                    ^

ReferenceError: fileExists is not defined
    at save (/<directory>/node_modules/@quasar/app-webpack/lib/app-extension/create-app-ext.js:29:37)
    at Object.set (/<directory>/node_modules/@quasar/app-webpack/lib/app-extension/create-app-ext.js:43:7)
    at AppExtensionInstance.install (/<directory>/node_modules/@quasar/app-webpack/lib/app-extension/AppExtensionInstance.js:235:22)
    at async runExtAction (/<directory>/node_modules/@quasar/app-webpack/lib/cmd/ext.js:69:3)

Node.js v20.15.1

When I go to the @quasar/app-webpack/lib/app-extension/create-app-ext.js:29:37 file I can see that the fileExists is actually not defined. Maybe it is a mistake?

What did you expect to happen?

I was expecting to install my extension successfully, I am able to install with v4.0.7

Reproduction URL

quasar/app-webpack/lib/app-extension/create-app-ext.js

Line 29 in 911de4a

stringifyJSON(json, { indent: fileExists ? undefined : 2 }),

How to reproduce?

1. Go to the link,
2. And see fileExists is actually not defined

Flavour

Quasar CLI with Webpack (@quasar/cli | @quasar/app-webpack)

Areas

App Extension API

Platforms/Browsers

Chrome

Quasar info output

Relevant log output

Additional context

No response

[yusufkandemir]

This was already fixed in bd70884, but not released yet. The fix will be included in the next app-webpack release.