hyperledger/fabric · error

Peer Identity %s cannot be validated. No MSP found able to d

Error message

Peer Identity %s cannot be validated. No MSP found able to do that.

What it means

In the gossip message crypto service's getValidatedIdentity: the peer identity bytes could be unmarshaled and resolved against channel MSPs, but no MSP manager on any known channel recognizes the identity's issuer, so no MSP can validate it. The %s is a truncated form of the identity; this fires for identities from peers not in any known channel or carrying an unknown MSP ID.

Source

Thrown at internal/peer/gossip/mcs.go:357

			return nil, nil, errors.Wrap(err, "identity is not well formed")
		}

		// Check identity validity
		// Notice that at this stage we don't have to check the identity
		// against any channel's policies.
		// This will be done by the caller function, if needed.

		if err := identity.Validate(); err != nil {
			mcsLogger.Debugf("Failed validating identity %s on [%s]: [%s]", peerIdentity, chainID, err)
			continue
		}

		mcsLogger.Debugf("Validation succeeded %s on [%s]", peerIdentity, chainID)

		return identity, common.ChannelID(chainID), nil
	}

	return nil, nil, fmt.Errorf("Peer Identity %s cannot be validated. No MSP found able to do that.", peerIdentity)
}

View on GitHub (pinned to 2736b63f8f)

Solutions

  1. Ensure the remote peer's organization is joined to at least one channel known to this peer and that the channel's config includes its MSP
  2. Verify the identity's MSP ID matches the MSP defined in the channel configuration
  3. Check channel membership/join state and gossip external endpoint configuration so peers learn about each other's channels
Defensive patterns

Strategy: fallback

When it happens

Trigger: Thrown at internal/peer/gossip/mcs.go:357 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of hyperledger/fabric@2736b63f8f (2026-09-04). Data as JSON: /api/errors/4183989ab0e611f4. Report an issue: GitHub.