go-kratos/kratos · warning

repo URL cannot be empty

Error message

repo URL cannot be empty

What it means

Inline validation in the kratos new interactive form: when the custom repository option is selected, the URL input rejects empty or whitespace-only submissions. The form cannot proceed until a non-empty URL is entered or a preset option is chosen instead.

Source

Thrown at cmd/kratos/internal/project/project.go:190

			huh.NewSelect[string]().
				Title("Select a template").
				Options(
					huh.NewOption("Service", "service"),
					huh.NewOption("Admin", "admin"),
					huh.NewOption("Custom (enter repo URL)", "custom"),
				).
				Value(&choice),
		),
		// 2) Input group (only visible when choice == "custom")
		huh.NewGroup(
			huh.NewInput().
				Title("Enter custom repository URL").
				Placeholder("https://github.com/owner/repo.git").
				Value(&customURL).
				Validate(func(s string) error {
					s = strings.TrimSpace(s)
					if s == "" {
						return fmt.Errorf("repo URL cannot be empty")
					}
					return nil
				}),
		).WithHideFunc(func() bool {
			return choice != "custom"
		}),
	)
	if err := form.Run(); err != nil {
		panic(err)
	}
	if choice == "custom" {
		return strings.TrimSpace(customURL), nil
	}
	return projects[choice], nil
}

View on GitHub (pinned to 668db92c2c)

Solutions

1. Type or paste a full git URL (e.g. https://github.com/owner/repo.git) and resubmit
2. Switch to a non-custom (preset) repository option instead

Example fix

# before
? Select repo: custom
? Enter custom repository URL: (empty) -> repo URL cannot be empty

# after
? Enter custom repository URL: https://github.com/owner/repo.git

u := strings.TrimSpace(customURL)
if u == "" {
    return errors.New("repo URL cannot be empty")
}
if _, err := url.ParseRequestURI(u); err != nil {
    return fmt.Errorf("invalid repo URL: %v", err)
}

When it happens

Trigger: Selecting the custom repo choice in the new-project form and submitting with the URL input empty after strings.TrimSpace.

Common situations: User tries to skip the input; clipboard paste fails leaving the field blank; scripted runs hitting the interactive prompt unexpectedly.

Related errors

• unable to parse repo url
• kratos/nacos: ServiceInstance.Name can not be empty
• 🚫 go.mod don't exists in %s
• 🚫 failed to get relative path: %v
• 🚫 failed to parse `go.mod`: %v

AI-assisted analysis of go-kratos/kratos@668db92c2c (2026-08-16). Data as JSON: /api/errors/fe682a07a57b2230. Report an issue: GitHub.