toeverything/AFFiNE · error · Error

Unsupported property type

Error message

Unsupported property type

What it means

A provider-resolution guard in the property group-by flow: the property exists and its type was resolved, but no GroupByProvider('property:' + type) is registered in the framework for that type. It fires when grouping by a property whose type has no grouping implementation — a gap between schema types and registered group-by providers; the faulting input is the property type derived from params.key.

Source

Thrown at packages/frontend/core/src/modules/collection-rules/impls/group-by/property.ts:35

  }

  groupBy$(
    items$: Observable<Set<string>>,
    params: GroupByParams
  ): Observable<Map<string, Set<string>>> {
    const property$ = this.workspacePropertyService.propertyInfo$(params.key);

    return property$.pipe(
      switchMap(property => {
        if (!property) {
          throw new Error('Unknown property');
        }
        const type = property.type;
        const provider = this.framework.getOptional(
          GroupByProvider('property:' + type)
        );
        if (!provider) {
          throw new Error('Unsupported property type');
        }
        return provider.groupBy$(items$, params);
      })
    );
  }
}

View on GitHub (pinned to b4c8548c09)

Solutions

1. Use a property type supported by group-by.
2. Add a group-by implementation for this type.

When it happens

Trigger: Thrown in the group-by property dispatcher when no group-by provider is registered for the property's type.

Common situations: Occurs when grouping by a property type without a registered group-by provider; group by a supported property type instead.

AI-assisted analysis of toeverything/AFFiNE@b4c8548c09 (2026-08-18). Data as JSON: /api/errors/c9dc13c40310c063. Report an issue: GitHub.