laravel 8 installation failed

Stefan Bogdanescu

Founder & Senior Architect · 2026-06-29

Laravel Company
# Fixing the Laravel Installation Nightmare: Troubleshooting Jetstream Setup Failures As a senior developer, I’ve seen countless times how frustrating dependency errors can be when setting up modern frameworks like Laravel, especially when integrating complex packages like Jetstream. The sequence of errors you described—the abrupt exit during the installer phase and the subsequent `Class 'Inertia\Inertia' not found` error—points to a common issue: version mismatch, incorrect project initialization, or dependency conflicts within the Composer environment. This post will walk you through the likely causes of these failures and provide the definitive, modern workflow to successfully install Laravel with Jetstream (Livewire/Inertia) without running into these roadblocks. ## Diagnosing the Installation Failure Sequence The errors you encountered are a clear sign that the setup process deviated from the expected structure or dependency chain: 1. **`laravel new laravel--jet` Aborting:** This often happens when the global Laravel installer encounters an issue with environment variables, permissions, or an outdated Composer version interacting with the project scaffolding mechanism. 2. **`Class 'Inertia\Inertia' not found` Error:** This is the critical error. It means that while you were trying to run a Jetstream Artisan command (`jetstream:install`), the underlying Laravel application structure didn't correctly load the necessary namespaces or autoload files for the Inertia package. This usually occurs because the initial project setup (Step 1) was incomplete or corrupted, meaning the subsequent packages cannot find their required base classes. ## The Recommended Modern Workflow Instead of relying on a fragmented sequence of global installers and manual commands, we should adopt the streamlined approach recommended by the Laravel ecosystem for new projects. This ensures that all dependencies are installed correctly from the start, which is crucial for maintaining code integrity, especially when dealing with components like Jetstream. ### Step 1: Clean Project Initialization The most reliable way to start a fresh Laravel project is directly using Composer, ensuring you pull the latest stable package versions immediately. We will skip the global installer for this specific task and rely on native Composer commands. First, ensure you have a clean environment. If you are working with complex tooling, always check your PHP version compatibility against the current Laravel release notes. For modern applications, stick to recent stable versions, as outlined in best practices from resources like [laravelcompany.com](https://laravelcompany.com). Run the standard project creation command: ```bash composer create-project --prefer-dist laravel/laravel my-jetstream-app cd my-jetstream-app ``` ### Step 2: Installing Jetstream Correctly Once you have a clean Laravel base, installing Jetstream should be handled via its official installation method. The specific command for Livewire/Inertia setups has evolved; we must use the current package structure. Instead of attempting to run a generic `jetstream:install` afterward, ensure you are using the correct setup command provided by the Jetstream package itself, often involving installing the necessary package via Composer first, and then running the specific scaffolding command. For the Livewire/Inertia stack, follow this sequence within your project directory: ```bash # 1. Install the Jetstream package dependency composer require laravel/jetstream # 2. Run the installation command for Inertia setup php artisan jetstream:install livewire/inertia ``` If you still encounter the `Inertia\Inertia` error after following these steps, it usually implies that a system cache issue is present. Clearing the Composer cache can resolve autoloading problems: ```bash composer dump-autoload ``` ## Conclusion: Consistency is Key to Success The key takeaway here is that framework installations are not linear; they are dependent on each other and require an understanding of their internal dependencies. When troubleshooting complex setups, avoid mixing global installers with local package requirements if possible. By prioritizing a clean project base and following the dependency installation steps explicitly—as demonstrated above—you ensure that your Laravel application adheres to the structure expected by Jetstream. Always refer to the official documentation for the most current commands, as framework updates frequently refine these installation procedures. Mastering this workflow will save you countless hours of debugging in the future.