run using npm run build-core:dev not working

[FlueschPluesch]

Can't run using "npm run build-core:dev", I cloned the repo and used "npm install" after.

PS D:\Apps\f7> npm run build-core:dev

> framework7-source@0.0.0 build-core:dev
> cross-env NODE_ENV=development CORE_BUILD_ONLY_UMD=true gulp build-core

[18:44:25] Using gulpfile D:\Apps\f7\gulpfile.js
[18:44:25] Starting 'build-core'...
[18:44:25] Starting 'core-clean'...
Der Befehl "xargs" ist entweder falsch geschrieben oder
konnte nicht gefunden werden.
[18:44:25] 'core-clean' errored after 18 ms
[18:44:25] Error: Shell command exit with non zero code: 255
    at ChildProcess.<anonymous> (D:\Apps\f7\node_modules\exec-sh\lib\exec-sh.js:73:17)
    at ChildProcess.emit (node:events:520:28)
    at ChildProcess.emit (node:domain:551:15)
    at maybeClose (node:internal/child_process:1105:16)
    at ChildProcess._handle.onexit (node:internal/child_process:305:5)
    at Process.callbackTrampoline (node:internal/async_hooks:130:17)
[18:44:25] 'build-core' errored after 20 ms

[nolimits4web]

Make sure your node js version is up to date