Boost install failing on windows 11

[planetarquasar]

Boost Version

2.1.1

Laravel Version

12.47.0

Agent/IDE Name & Version

No response

PHP Version

8.4

System Info

Windows 11

Description

The boost install failing.
php artisan boost:install

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✦ Laravel Boost :: Install :: We Must Ship ✦

Let's give MyApp a Boost

Symfony\Component\Process\Exception\ProcessStartFailedException

The command "where claude 2>nul" failed.

Working directory: C:\FolderParent\FolderChild\FolderGrandchild

Error: proc_open(): CreateProcess failed: The parameter is incorrect

at vendor\symfony\process\Process.php:382
378▕ restore_error_handler();
379▕ }
380▕
381▕ if (!$process) {
➜ 382▕ throw new ProcessStartFailedException($this, $lastError);
383▕ }
384▕ $this->process = $process;
385▕ $this->status = self::STATUS_STARTED;
386▕

1 vendor\symfony\process\Process.php:252
Symfony\Component\Process\Process::start()

2 vendor\laravel\framework\src\Illuminate\Support\HigherOrderTapProxy.php:33
Symfony\Component\Process\Process::run()

Steps To Reproduce

composer require laravel/boost --dev
php artisan boost:install

[soleinjast]

@pushpak1300

Hi! The root cause is that where claude 2>nul uses shell redirection syntax which PHP's proc_open can't handle directly on Windows — it needs to go through cmd.exe.

Using cmd /c where claude 2>nul or cmd /c where claude instead of where claude 2>nul should fix it.

Also worth wrapping the detection in a try/catch so the installer fails gracefully instead of throwing a ProcessStartFailedException when Claude CLI is not installed.

Happy to submit a PR if that helps.

[pushpak1300]

Thanks @soleinjast. feel free to submit Pr with minimal changes which fix this issue.

[pushpak1300]

Fixed in v2.1.2. @planetarquasar can you confirm ?

[planetarquasar]

I tested it, but ufortunatelly still not working. Now this is the error.
php artisan boost:install

██████╗ ██████╗ ██████╗ ███████╗ ████████╗
██╔══██╗ ██╔═══██╗ ██╔═══██╗ ██╔════╝ ╚══██╔══╝
██████╔╝ ██║ ██║ ██║ ██║ ███████╗ ██║
██╔══██╗ ██║ ██║ ██║ ██║ ╚════██║ ██║
██████╔╝ ╚██████╔╝ ╚██████╔╝ ███████║ ██║
╚═════╝ ╚═════╝ ╚═════╝ ╚══════╝ ╚═╝

✦ Laravel Boost :: Install :: We Must Ship ✦

Let's give MyApp a Boost

Symfony\Component\Process\Exception\ProcessStartFailedException

The command "cmd /c where claude 2>nul" failed.

Working directory: C:\FolderParent\FolderChild\FolderGrandchild

Error: proc_open(): CreateProcess failed: The parameter is incorrect

at vendor\symfony\process\Process.php:382
378▕ restore_error_handler();
379▕ }
380▕
381▕ if (!$process) {
➜ 382▕ throw new ProcessStartFailedException($this, $lastError);
383▕ }
384▕ $this->process = $process;
385▕ $this->status = self::STATUS_STARTED;
386▕

1 vendor\symfony\process\Process.php:252
Symfony\Component\Process\Process::start()

2 vendor\laravel\framework\src\Illuminate\Support\HigherOrderTapProxy.php:33
Symfony\Component\Process\Process::run()

[github-actions]

Thank you for reporting this issue!

As Laravel is an open source project, we rely on the community to help us diagnose and fix issues as it is not possible to research and fix every issue reported to us via GitHub.

If possible, please make a pull request fixing the issue you have described, along with corresponding tests. All pull requests are promptly reviewed by the Laravel team.

Thank you!

[jotafurtado]

I was able to reproduce and confirm this issue on my environment:

• PHP 8.4.17
• Laravel 12
• Laravel Boost 2.1.1
• Windows 11

The root cause is that on Windows, proc_open() cannot handle shell redirection syntax (2>nul) directly — it needs to be routed through cmd.exe. In v2.1.1, the agent detection commands for ClaudeCode, Codex, Gemini, and OpenCode use bare where 2>nul, which causes the ProcessStartFailedException.

I wrote a Pest test suite covering all four agents and confirmed:

v2.1.1: 12 out of 18 tests fail — the Windows detection commands lack the cmd /c prefix, and detectOnSystem(Platform::Windows) breaks as reported.

v2.1.6: All 18 tests pass — the fix from PR #558 correctly prefixes all Windows commands with cmd /c, allowing the shell redirection to be interpreted properly.

Upgrading to v2.1.6 resolves the issue. For anyone hitting this, composer update laravel/boost should fix it.