我有一个可以在我的本地计算机上运行的 Web 应用程序，但不能在我的服务器上运行。我在服务器上收到此错误。我检查了错误提到的代码，它没有任何问题。
你知道是什么原因造成的吗？
非常感谢您提前。
这是我的错误信息：
Fatal error: Interface 'Illuminate\Exception\ExceptionDisplayerInterface' not found in /var/www/test-app.domain.com/public_html/vendor/laravel/framework/src/Illuminate/Exception/SymfonyDisplayer.php on line 6
这是 SymphonyDisplayer.php 的第 6 行：
class SymfonyDisplayer implements ExceptionDisplayerInterface {
它说没有ExceptionDisplayerInterface。但是，它就在该文件旁边，在同一目录中。ExceptionDisplayerInterface.php在Exception文件夹中SymphonyDisplayer.php
这是我的composer install输出：
>>composer install
Loading composer repositories with package information
Installing dependencies (including require-dev) from lock file
Your requirements could not be resolved to an installable set of packages.
Problem 1
- jeremeamia/SuperClosure 1.0.1 requires nikic/php-parser ~0.9 -> no matching package found.
- jeremeamia/SuperClosure 1.0.1 requires nikic/php-parser ~0.9 -> no matching package found.
- Installation request for jeremeamia/superclosure 1.0.1 -> satisfiable by jeremeamia/SuperClosure[1.0.1].
Potential causes:
- A typo in the package name
- The package is not available in a stable-enough version according to your minimum-stability setting
see <https://groups.google.com/d/topic/composer-dev/_g3ASeIFlrc/discussion> for more details.
Read <http://getcomposer.org/doc/articles/troubleshooting.md> for further common problems.
这是执行后的一个新错误composer update：
Fatal error: Interface 'Whoops\Handler\HandlerInterface' not found in /var/www/test-app.domain.com/public_html/vendor/filp/whoops/src/Whoops/Handler/Handler.php on line 17
在尝试找出问题时，这里还有一些输出：
>>composer diagnose
Checking platform settings: OK
Checking git settings: OK
Checking http connectivity: OK
Checking composer.json: OK
Checking disk free space: OK
Checking composer version: OK
>>composer self-update
You are already using composer version 0d4c2bb7d7a864a9b3e876908e743310cdeaa5e6.