diff -u b/core/lib/Drupal/Core/Database/Driver/mysql/Schema.php b/core/lib/Drupal/Core/Database/Driver/mysql/Schema.php
--- b/core/lib/Drupal/Core/Database/Driver/mysql/Schema.php
+++ b/core/lib/Drupal/Core/Database/Driver/mysql/Schema.php
@@ -329,10 +329,10 @@
 
   public function copyTable($source, $destination) {
     if (!$this->tableExists($source)) {
-      throw new SchemaObjectDoesNotExistException(t("Cannot copy @source to @destination: table @source doesn't exist.", array('@table' => $source, '@table_new' => $destination)));
+      throw new SchemaObjectDoesNotExistException(t("Cannot copy @source to @destination: table @source doesn't exist.", array('@source' => $source, '@destination' => $destination)));
     }
     if ($this->tableExists($destination)) {
-      throw new SchemaObjectExistsException(t("Cannot copy @source to @destination: table @destination already exists.", array('@table' => $source, '@table_new' => $destination)));
+      throw new SchemaObjectExistsException(t("Cannot copy @source to @destination: table @destination already exists.", array('@source' => $source, '@destination' => $destination)));
     }
     $info = $this->getPrefixInfo($destination);
     return $this->connection->query('CREATE TABLE `' . $info['table'] . '` LIKE {' . $source . '}');
diff -u b/core/lib/Drupal/Core/Database/Driver/pgsql/Schema.php b/core/lib/Drupal/Core/Database/Driver/pgsql/Schema.php
--- b/core/lib/Drupal/Core/Database/Driver/pgsql/Schema.php
+++ b/core/lib/Drupal/Core/Database/Driver/pgsql/Schema.php
@@ -350,10 +350,10 @@
 
   public function copyTable($source, $destination) {
     if (!$this->tableExists($source)) {
-      throw new SchemaObjectDoesNotExistException(t("Cannot copy @source to @destination: table @source doesn't exist.", array('@table' => $source, '@table_new' => $destination)));
+      throw new SchemaObjectDoesNotExistException(t("Cannot copy @source to @destination: table @source doesn't exist.", array('@source' => $source, '@destination' => $destination)));
     }
     if ($this->tableExists($destination)) {
-      throw new SchemaObjectExistsException(t("Cannot copy @source to @destination: table @destination already exists.", array('@table' => $source, '@table_new' => $destination)));
+      throw new SchemaObjectExistsException(t("Cannot copy @source to @destination: table @destination already exists.", array('@source' => $source, '@destination' => $destination)));
     }
     $info = $this->getPrefixInfo($destination);
     return $this->connection->query('CREATE TABLE `' . $info['table'] . '` (LIKE {' . $source . '} INCLUDING ALL)');
diff -u b/core/lib/Drupal/Core/Database/Driver/sqlite/Schema.php b/core/lib/Drupal/Core/Database/Driver/sqlite/Schema.php
--- b/core/lib/Drupal/Core/Database/Driver/sqlite/Schema.php
+++ b/core/lib/Drupal/Core/Database/Driver/sqlite/Schema.php
@@ -274,10 +274,10 @@
 
   public function copyTable($source, $destination) {
     if (!$this->tableExists($source)) {
-      throw new SchemaObjectDoesNotExistException(t("Cannot copy @source to @destination: table @source doesn't exist.", array('@table' => $source, '@table_new' => $destination)));
+      throw new SchemaObjectDoesNotExistException(t("Cannot copy @source to @destination: table @source doesn't exist.", array('@source' => $source, '@destination' => $destination)));
     }
     if ($this->tableExists($destination)) {
-      throw new SchemaObjectExistsException(t("Cannot copy @source to @destination: table @destination already exists.", array('@table' => $source, '@table_new' => $destination)));
+      throw new SchemaObjectExistsException(t("Cannot copy @source to @destination: table @destination already exists.", array('@source' => $source, '@destination' => $destination)));
     }
     $this->createTable($destination, $this->introspectSchema($source));
   }