Laravel 5.2工匠优化 - php_strip_whitespace无法打开流:没有子进程

从5.1升级到Laravel 5.2后,在CircleCI上运行artisan优化,运行PHP 5.6.14时,我得到了

[ErrorException]                                                                                 
php_strip_whitespace(/var/laravel/project/root): failed to open stream: No child processes

其中/ var/laravel/project/root是composer.json和vendor所在的目录.

该命令在运行PHP 5.6.11-1ubuntu3.1的开发盒上运行正常.我按照官方的5.1到5.2升级指南.

Exception trace:
() at /var/laravel/project/root/vendor/classpreloader/classpreloader/src/ClassPreloader.php:124
Illuminate\Foundation\Bootstrap\HandleExceptions->handleError() at n/a:n/a
php_strip_whitespace() at /var/laravel/project/root/vendor/classpreloader/classpreloader/src/ClassPreloader.php:124
ClassPreloader\ClassPreloader->getCode() at /var/laravel/project/root/vendor/laravel/framework/src/Illuminate/Foundation/Console/OptimizeCommand.php:83
Illuminate\Foundation\Console\OptimizeCommand->compileClasses() at /var/laravel/project/root/vendor/laravel/framework/src/Illuminate/Foundation/Console/OptimizeCommand.php:64
Illuminate\Foundation\Console\OptimizeCommand->fire() at n/a:n/a
call_user_func_array() at /var/laravel/project/root/bootstrap/cache/compiled.php:1217
Illuminate\Container\Container->call() at /var/laravel/project/root/vendor/laravel/framework/src/Illuminate/Console/Command.php:169
Illuminate\Console\Command->execute() at /var/laravel/project/root/vendor/symfony/console/Command/Command.php:256
Symfony\Component\Console\Command\Command->run() at /var/laravel/project/root/vendor/laravel/framework/src/Illuminate/Console/Command.php:155
Illuminate\Console\Command->run() at /var/laravel/project/root/vendor/symfony/console/Application.php:787
Symfony\Component\Console\Application->doRunCommand() at /var/laravel/project/root/vendor/symfony/console/Application.php:186
Symfony\Component\Console\Application->doRun() at /var/laravel/project/root/vendor/symfony/console/Application.php:117
Symfony\Component\Console\Application->run() at /var/laravel/project/root/vendor/laravel/framework/src/Illuminate/Foundation/Console/Kernel.php:107
Illuminate\Foundation\Console\Kernel->handle() at /var/laravel/project/root/artisan:36

有关如何解决这个问题的任何想法吗？

我在https://laracasts.com/discuss/channels/laravel/laravel-optimize-error上找到了答案,其中johnwheal提到这config/compile.php是错误的.

事实证明,文件数组在config/compile.php2015年4月的提交中被清空,但我看不到升级指南中提到的更改.它已被添加到升级指南中.

要解决这个问题:

清空文件数组 config/compile.php

要么

从中删除BusServiceProvider.php和ConfigServiceProvider.php从文件数组中删除config/compile.php .