"Root node not found” error on opening https://localhost/pimcore-studio/

[blackbender]

Summary After installing PimcoreStudioBundle, opening https://localhost/pimcore-studio/ shows an error dialog “Root node not found.” The browser console reports 400 responses from /pimcore-studio/api endpoints and module federation version mismatch warnings.

Environment:

• Pimcore Studio Backend enabled
• Symfony security firewall includes pimcore_studio backend settings
• Mercure configured (hub_url_client https://localhost/hub, server http://mercure/.well-known/mercure)
• Running locally over HTTPS (self‑signed cert)
• Elasticsearch and other services available

What happens:

1. UI loads but immediately shows “Root node not found.”
2. Network tab: GET to /pimcore-studio/api/assets/tree (and similar tree/pages) returns 400 Bad Request.
3. Console: Federation Runtime logs about react-codemirror version mismatch; then stack trace ending with “Error: Root node not found.”

What I expected
Pimcore Studio home should load and render the initial trees without client errors.

Video:

PimcoreStudioProblemFull.mp4

Question about docker-compose Mercure config

Can you confirm whether the following Mercure service configuration is correct for Pimcore Studio? The publisher and subscriber JWT keys are identical (intentionally masked here but they match 1:1).

mercure:
  image: dunglas/mercure:latest
  restart: unless-stopped
  environment:
    # Disable HTTPS
    SERVER_NAME: ':80'
    MERCURE_PUBLISHER_JWT_KEY: '<256-bit-secret-min-32-chars>'
    MERCURE_SUBSCRIBER_JWT_KEY: '<256-bit-secret-min-32-chars>'
    MERCURE_EXTRA_DIRECTIVES: |-
      cors_origins "https://localhost"
    command: /usr/bin/caddy run --config /etc/caddy/dev.Caddyfile
  expose:
    - "80"
  ports:
    - "8080:80"
  volumes:
    - ./.docker/mercure/data:/data
    - ./.docker/mercure/config:/config

Thanks in advance for help and guidance!

[fashxp]

Make sure messenger messages from generic data index are consumed and queue is processed.

[blackbender]

Thank you for answering my question!
Is it expected that the Pimcore Studio interface does not contain sections like DataHub, Translations, etc.? Are these features planned to appear in Studio, available behind flags/permissions, or should they still be accessed via the classic Pimcore admin?

[fashxp]

Translations should be there.
But in general, the roadmap is as follow:
First we aim for feature completeness for data editors, so that they can use Pimcore Studio for data management. There we expect a 1.0 release later this year.
After that we will concentrate on all the configuration features, like Datahub, Class Definitions, System Settings, etc. which we plan to ship in Q1 2026.
Pimcore Studio and Classic UI can run in parallel during the transition phase.