An error has occured :-(
Usual error causes
You started the application from an IDE and you didn't run
npm run webpack:build
You had a network error while running
. If you are behind a corporate proxy, it is likely that this error was caused by your proxy.
You installed a Node.js version that doesn't work with spoon-ui: please use an LTS (long-term support) version, as it's the only version we support.