Can't run BROWSER problem

[joshua-classen]

Hey,
i rebuild the app as described on your blog. After running: npm run dev i get:
`npm run dev

[email protected] dev
concurrently -k "BROWSER=none npm start" "npm:electron"

[0] Der Befehl "BROWSER" ist entweder falsch geschrieben oder
[0] konnte nicht gefunden werden.
[0] BROWSER=none npm start exited with code 1
--> Sending SIGTERM to other processes..
[electron] npm run electron exited with code 1`

He can't find BROWSER. Do you have a fix for that?