hyperledger/fabric · error

%s does not exist

Error message

%s does not exist

What it means

Returned by gomodDevConfigDir when the sampleconfig directory expected next to the go.mod file is absent. Dev/test config discovery ran in module mode but the usual sampleconfig tree is missing from the checkout.

Source

Thrown at core/config/configtest/config.go:89

}

func gomodDevConfigDir() (string, error) {
	buf := bytes.NewBuffer(nil)
	cmd := exec.Command("go", "env", "GOMOD")
	cmd.Stdout = buf

	if err := cmd.Run(); err != nil {
		return "", err
	}

	modFile := strings.TrimSpace(buf.String())
	if modFile == "" {
		return "", errors.New("not a module or not in module mode")
	}

	devPath := filepath.Join(filepath.Dir(modFile), "sampleconfig")
	if !dirExists(devPath) {
		return "", fmt.Errorf("%s does not exist", devPath)
	}

	return devPath, nil
}

// GetDevMspDir gets the path to the sampleconfig/msp tree that is maintained
// with the source tree.  This should only be used in a test/development
// context.
func GetDevMspDir() string {
	devDir := GetDevConfigDir()
	return filepath.Join(devDir, "msp")
}

func SetDevFabricConfigPath(t *testing.T) {
	t.Helper()
	t.Setenv("FABRIC_CFG_PATH", GetDevConfigDir())
}

View on GitHub (pinned to 2736b63f8f)

Solutions

1. Restore or create the sampleconfig directory in the module root
2. Point tests at an explicit config directory instead of auto-discovery

When it happens

Trigger: Thrown at core/config/configtest/config.go:89 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/d728ce23314d2e6a. Report an issue: GitHub.