Issue #2883025 by pameeela, joachim, mradcliffe: Exception messages in...

Issue #2883025 by pameeela, joachim, mradcliffe: Exception messages in FieldConfig::getFieldStorageDefinition() are inaccurate

core/modules/field/src/Entity/FieldConfig.php

@@ -313,10 +313,10 @@ public function getFieldStorageDefinition() {
       }
 
       if (!$field_storage_definition) {
-        throw new FieldException("Attempted to create an instance of field with name {$this->field_name} on entity type {$this->entity_type} when the field storage does not exist.");
+        throw new FieldException("Attempted to create, modify or delete an instance of field with name {$this->field_name} on entity type {$this->entity_type} when the field storage does not exist.");
       }
       if (!$field_storage_definition instanceof FieldStorageConfigInterface) {
-        throw new FieldException("Attempted to create a configurable field of non-configurable field storage {$this->field_name}.");
+        throw new FieldException("Attempted to create, modify or delete a configurable field of non-configurable field storage {$this->field_name}.");
       }
       $this->fieldStorage = $field_storage_definition;
     }