我不信只有一个人遇到过这样的错，Composer require Laravel/ui --dev

vagrant@homestead:~/code/weibo02$ composer require laravel/ui --dev
Using version ^1.1 for laravel/ui
./composer.json has been updated
Loading composer repositories with package information
Updating dependencies (including require-dev)
Package operations: 1 install, 0 updates, 0 removals
  - Installing laravel/ui (v1.1.1): Downloading (100%)
Writing lock file
Generating optimized autoload files
PHP Fatal error:  Uncaught TypeError: Argument 1 passed to Composer\Autoload\ClassLoader::addClassMap() must be of the type array, integer given, called in phar:///usr/local/bin/composer/src/Composer/Autoload/AutoloadGenerator.php on line 764 and defined in phar:///usr/local/bin/composer/vendor/composer/ClassLoader.php:92
Stack trace:
#0 phar:///usr/local/bin/composer/src/Composer/Autoload/AutoloadGenerator.php(764): Composer\Autoload\ClassLoader->addClassMap(1)
#1 phar:///usr/local/bin/composer/src/Composer/Autoload/AutoloadGenerator.php(303): Composer\Autoload\AutoloadGenerator->getStaticFile('90c26babc934444...', '/home/vagrant/c...', '/home/vagrant/c...', '/home/vagrant/c...', 50600)
#2 phar:///usr/local/bin/composer/src/Composer/Installer.php(303): Composer\Autoload\AutoloadGenerator->dump(Object(Composer\Config), Object(Composer\Repository\InstalledFilesystemRepository), Object(Composer\Package\RootPackage), Object(Composer\Installer\InstallationManager), '/home/vagrant/c...', true)
#3 phar:///usr/local/bin/composer/src/ in phar:///usr/local/bin/composer/vendor/composer/ClassLoader.php on line 92

Fatal error: Uncaught TypeError: Argument 1 passed to Composer\Autoload\ClassLoader::addClassMap() must be of the type array, integer given, called in phar:///usr/local/bin/composer/src/Composer/Autoload/AutoloadGenerator.php on line 764 and defined in phar:///usr/local/bin/composer/vendor/composer/ClassLoader.php:92
Stack trace:
#0 phar:///usr/local/bin/composer/src/Composer/Autoload/AutoloadGenerator.php(764): Composer\Autoload\ClassLoader->addClassMap(1)
#1 phar:///usr/local/bin/composer/src/Composer/Autoload/AutoloadGenerator.php(303): Composer\Autoload\AutoloadGenerator->getStaticFile('90c26babc934444...', '/home/vagrant/c...', '/home/vagrant/c...', '/home/vagrant/c...', 50600)
#2 phar:///usr/local/bin/composer/src/Composer/Installer.php(303): Composer\Autoload\AutoloadGenerator->dump(Object(Composer\Config), Object(Composer\Repository\InstalledFilesystemRepository), Object(Composer\Package\RootPackage), Object(Composer\Installer\InstallationManager), '/home/vagrant/c...', true)
#3 phar:///usr/local/bin/composer/src/ in phar:///usr/local/bin/composer/vendor/composer/ClassLoader.php on line 92