I have a custom module I’m working on and I’d like to make it configurable via the admin menu. I’m having difficulty getting a form to appear in the admin page. Here is my file structure so far (excluding irrelevant files):

*The form file is just an example form to try to get it to appear on the admin page.

MYMODULE.routing.yml

MYMODULE.settings:   path: '/admin/config/MYMODULE'   defaults:     _form: 'DrupalMYMODULEFormmyModuleSettingsForm'     _title: 'myModule Settings'   requirements:     _permission: 'administer site configuration' 

MYMODULE.schema.yml

MYMODULE.settings:   type: config_object   label: 'myModule Settings'   mapping:     path_to_sound:       type: string       label: 'Path to Sound' 

MYMODULE.links.menu.yml

MYMODULE.settings:   title: 'myModule Settings'   description: 'Alter myModule Settings'   route_name: MYMODULE.settings   parent: system.admin_config 

MYMODULE.settings.yml

path:   path_to_sound: '/modules/custom/MYMODULE/myModule.mp3' 

myModuleSettingsForm.php

<?php  namespace DrupalMYMODULEForm;  use DrupalCoreFormConfigFormBase; use DrupalCoreFormFormStateInterface;  /**  * Configure example settings for this site.  */ class myModuleSettingsForm extends ConfigFormBase {    /**    * Config settings.    *    * @var string    */   const SETTINGS = 'MYMODULE.settings';    /**    * {@inheritdoc}    */   public function getFormId() {     return 'MYMODULE_admin_settings';   }    /**    * {@inheritdoc}    */   protected function getEditableConfigNames() {     return [       static::SETTINGS,     ];   }    /**    * {@inheritdoc}    */   public function buildForm(array $form, FormStateInterface $form_state) {     $config = $this->config(static::SETTINGS);      $form['example_thing'] = [       '#type' => 'textfield',       '#title' => $this->t('Things'),       '#default_value' => $config->get('example_thing'),     ];      return parent::buildForm($form, $form_state);   }    /**    * {@inheritdoc}    */   public function submitForm(array &$form, FormStateInterface $form_state) {     // Retrieve the configuration.     $this->configFactory->getEditable(static::SETTINGS)       // Set the submitted configuration setting.       ->set('example_thing', $form_state->getValue('example_thing'))       // You can set multiple configurations at once by making       // multiple calls to set().       ->save();      parent::submitForm($form, $form_state);   }  } 

It’s my understanding that I should now be able to see this form on the config page, but I do not, regardless of cache clearing, etc. I followed documentation to do this and even cross referenced other popular modules, so I’m really not sure what I’m doing wrong.