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# MN0037: adapter observation unsupported

Status: active
Objects: Application, Behavior, CollectionView, MnObject, View
Category: configuration
Severity: error

## Remediation

Configure a StateApi or DataApi that can observe the selected source, or remove the declarative event map.

[Diagnostic catalog](/errors/index.md) · [Source identity](/docs/manifest.json)


[Canonical source](/docs/markdown/config/diagnostics/catalog.json) · [Source identity](/docs/manifest.json)