hyperledger/fabric · error

failed creating MSPRole_CLIENT

Error message

failed creating MSPRole_CLIENT

What it means

postSetupV11 wraps a proto.Marshal failure while building the MSPRole_CLIENT principal used to check that admin certificates carry the client OU. Marshalling a just-constructed small protobuf is practically infallible; failure signals a programming error or corrupted protobuf runtime state.

Source

Thrown at msp/mspimplsetup.go:688

	err = msp.postSetupV142(conf)
	if err != nil {
		return err
	}

	return nil
}

func (msp *bccspmsp) postSetupV11(conf *m.FabricMSPConfig) error {
	// Check for OU enforcement
	if !msp.ouEnforcement {
		// No enforcement required. Call post setup as per V1
		return msp.postSetupV1(conf)
	}

	// Check that admins are clients
	principalBytes, err := proto.Marshal(&m.MSPRole{Role: m.MSPRole_CLIENT, MspIdentifier: msp.name})
	if err != nil {
		return errors.Wrapf(err, "failed creating MSPRole_CLIENT")
	}
	principal := &m.MSPPrincipal{
		PrincipalClassification: m.MSPPrincipal_ROLE,
		Principal:               principalBytes,
	}
	for i, admin := range msp.admins {
		err = admin.SatisfiesPrincipal(principal)
		if err != nil {
			return errors.WithMessagef(err, "admin %d is invalid", i)
		}
	}

	return nil
}

func (msp *bccspmsp) postSetupV142(conf *m.FabricMSPConfig) error {
	// Check for OU enforcement
	if !msp.ouEnforcement {

View on GitHub (pinned to 2736b63f8f)

Solutions

1. Inspect the wrapped proto.Marshal error for the exact cause
2. Verify msp.name and the MSPRole message construction in postSetupV11
3. Treat as a bug: report or fix rather than retry, since input data does not vary

When it happens

Trigger: Thrown at msp/mspimplsetup.go:688 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/91c810b3d86581a0. Report an issue: GitHub.