SQLSTATE[42000]: Syntax error or access violation: 1071 Specified key was too long; max key length
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PS D:\\Centos\\phpstudyWWW\\dcatAdmin> php artisan admin:install
Migration table created successfully.
Migrating: 2014_10_12_000000_create_users_table
Illuminate\\Database\\QueryException : SQLSTATE[42000]: Syntax error or access violation: 1071 Specified key was too long; max key length is 767 bytes (SQL: alter table `users` add unique `users_email_unique`(`email`))
at D:\\Centos\\PHPstudyWWW\\dcatAdmin\\vendor\\laravel\\framework\\src\\Illuminate\\Database\\Connection.php:664
660| // If an exception occurs when attempting to run a query, we'll format the error
661| // message to include the bindings with SQL, which will make this exception a
662| // lot more helpful to the developer instead of just the database's errors.
663| catch (Exception $e)
> 664| throw new QueryException(
665| $query, $this->prepareBindings($bindings), $e
666| );
667|
668|
Exception trace:
1 Doctrine\\DBAL\\Driver\\PDO\\Exception::("SQLSTATE[42000]: Syntax error or access violation: 1071 Specified key was too long; max key length is 767 bytes")
D:\\Centos\\PHPstudyWWW\\dcatAdmin\\vendor\\doctrine\\dbal\\lib\\Doctrine\\DBAL\\Driver\\PDO\\Exception.php:18
2 Doctrine\\DBAL\\Driver\\PDO\\Exception::new(Object(PDOException))
D:\\Centos\\PHPstudyWWW\\dcatAdmin\\vendor\\doctrine\\dbal\\lib\\Doctrine\\DBAL\\Driver\\PDOStatement.php:119
Please use the argument -v to see more details.
PS D:\\Centos\\PHPstudyWWW\\dcatAdmin>
laravel报错 “ SQLSTATE[42000]: Syntax error or access violation: 1071 Specified key was too long; max key length is 1000 bytes”
原因:mysql版本较低
解决办法:app\\Providers\\AppServiceProvider.php
下修改 boot()
方法添加如下代码
Schema::defaultStringLength(191);
完整代码
<?php
namespace App\\Providers;
use Illuminate\\Support\\ServiceProvider;
use Illuminate\\Support\\Facades\\Schema;
class AppServiceProvider extends ServiceProvider
/**
* Bootstrap any application services.
*
* @return void
*/
public function boot()
Schema::defaultStringLength(191);
/**
* Register any application services.
*
* @return void
*/
public function register()
//
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