prestashop Attempted to load class "moduleName" from the global namespace

add this section to composer.json of your module ,

and excute composer update in command line, then module can load the Class of moudule port file

Symfony\Component\Form\FormRenderer::searchAndRenderBlock(): Argument #1 ($view) must be of type Symfony\Component\Form\FormView, string given, called in  /var/cache/dev/twig/a9/a974e1c953beb04fffb8600bb3ca9afa.php on line 146

The "prestashop.module.combinationsale.component.grid.factory" service or alias has been removed or inlined when the container was compiled. You should either make it public, or stop using the container directly and use dependency injection instead.