composer install fail

[monkeycraps]

[ErrorException] php_strip_whitespace(/Users/apple/Workspace/php/test/laravel5-backend): failed to open stream: No such file or directory

[monkeycraps]

exactly it is working at 'php artisan optimize'

[monkeycraps]

Exception trace:
 () at /Users/apple/Workspace/php/test/laravel5-backend/vendor/classpreloader/classpreloader/src/ClassPreloader.php:124
 Illuminate\Foundation\Bootstrap\HandleExceptions->handleError() at n/a:n/a
 php_strip_whitespace() at /Users/apple/Workspace/php/test/laravel5-backend/vendor/classpreloader/classpreloader/src/ClassPreloader.php:124
 ClassPreloader\ClassPreloader->getCode() at /Users/apple/Workspace/php/test/laravel5-backend/vendor/laravel/framework/src/Illuminate/Foundation/Console/OptimizeCommand.php:91
 Illuminate\Foundation\Console\OptimizeCommand->compileClasses() at /Users/apple/Workspace/php/test/laravel5-backend/vendor/laravel/framework/src/Illuminate/Foundation/Console/OptimizeCommand.php:72
 Illuminate\Foundation\Console\OptimizeCommand->fire() at n/a:n/a
 call_user_func_array() at /Users/apple/Workspace/php/test/laravel5-backend/bootstrap/cache/compiled.php:1182
 Illuminate\Container\Container->call() at /Users/apple/Workspace/php/test/laravel5-backend/vendor/laravel/framework/src/Illuminate/Console/Command.php:150
 Illuminate\Console\Command->execute() at /Users/apple/Workspace/php/test/laravel5-backend/vendor/symfony/console/Command/Command.php:256
 Symfony\Component\Console\Command\Command->run() at /Users/apple/Workspace/php/test/laravel5-backend/vendor/laravel/framework/src/Illuminate/Console/Command.php:136
 Illuminate\Console\Command->run() at /Users/apple/Workspace/php/test/laravel5-backend/vendor/symfony/console/Application.php:838
 Symfony\Component\Console\Application->doRunCommand() at /Users/apple/Workspace/php/test/laravel5-backend/vendor/symfony/console/Application.php:189
 Symfony\Component\Console\Application->doRun() at /Users/apple/Workspace/php/test/laravel5-backend/vendor/symfony/console/Application.php:120
 Symfony\Component\Console\Application->run() at /Users/apple/Workspace/php/test/laravel5-backend/vendor/laravel/framework/src/Illuminate/Foundation/Console/Kernel.php:107
 Illuminate\Foundation\Console\Kernel->handle() at /Users/apple/Workspace/php/test/laravel5-backend/artisan:36