Error when installing filament from forked repo

Error:
Script Illuminate\Foundation\ComposerScripts::postAutoloadDump handling the post-autoload-dump event terminated with an exception

In autoload_real.php line 41:
                                                                                                                                                 
  require(/home/mateo/Desktop/laravel/vendor/composer/../filament/filament/tests/helpers.php): Failed to open stream: No such file or directory  
Solution
/home/mateo/Desktop/filament/packages/*
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Error when installing filament from forked repo - Filament