Fix App View schema errors
When App View metadata is invalid, Orion shows App View schema could not be rendered with a list of validation errors instead of the layout.
Fix
- Click Back to Notebook View if shown.
- Read each error in the list—it usually names a missing
cellId, wrongoutputIndex, or unsupported primitive. - Fix the schema:
- Ask the assistant to repair App View metadata, or
- Remove invalid nodes and re-add content via right-click → Add to App View in Notebook view.
- Switch to App View again.
Common causes
| Error pattern | Likely cause |
|---|---|
Unknown or missing cellId | Cell was deleted or id changed after schema was written |
Invalid outputIndex | Cell has fewer outputs than referenced (rerun the code cell first) |
Unsupported type | Typo in primitive name; v1 only supports built-in types |
Missing version: 1 | Schema root must declare version 1 |
Empty App View (not an error)
No cells in App View means no layout is configured yet—not a broken schema. Add cells from Notebook view with right-click → Add to App View.
See App View.
Interactive controls
If sliders or buttons misbehave, move interactivity to orion_ui code cells and reference outputs with Output in App View—not static control primitives alone.
Related
Last updated May 2026.