Issue #3154024: Undefined index: config_dependencies

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

@@ -79,10 +79,16 @@ abstract class PropertiesBase extends SalesforceMappingFieldPluginBase {
    */
   public function checkFieldMappingDependency(array $dependencies) {
     $definition = $this->getPluginDefinition();
-    foreach ($definition['config_dependencies'] as $type => $dependency) {
-      foreach ($dependency as $item) {
-        if (!empty($dependencies[$type][$item])) {
-          return TRUE;
+    if (isset($definition['config_dependencies'])) {
+      if (!isset($definition['config_dependencies']['config'])) {
+        $definition['config_dependencies']['config'] = [];
+      }
+
+      foreach ($definition['config_dependencies'] as $type => $dependency) {
+        foreach ($dependency as $item) {
+          if (!empty($dependencies[$type][$item])) {
+            return TRUE;
+          }
         }
       }
     }