Issue #3154024 by mariacha1: Undefined index: config_dependencies

modules/salesforce_mapping/src/Plugin/SalesforceMappingField/RelatedIDs.php

@@ -140,6 +140,7 @@ class RelatedIDs extends SalesforceMappingFieldPluginBase {
    */
   public function getPluginDefinition() {
     $definition = parent::getPluginDefinition();
+    $definition['config_dependencies']['config'] = [];
     // Add reference field.
     if ($field = FieldConfig::loadByName($this->mapping->getDrupalEntityType(), $this->mapping->getDrupalBundle(), $this->config('drupal_field_value'))) {
       $definition['config_dependencies']['config'][] = $field->getConfigDependencyName();

modules/salesforce_mapping/src/Plugin/SalesforceMappingField/RelatedProperties.php

@@ -98,6 +98,7 @@ class RelatedProperties extends SalesforceMappingFieldPluginBase {
    */
   public function getPluginDefinition() {
     $definition = parent::getPluginDefinition();
+    $definition['config_dependencies']['config'] = [];
     $field_name = $this->config('drupal_field_value');
     if (strpos($field_name, ':')) {
       list($field_name, $dummy) = explode(':', $field_name, 2);