当我在我的 Symfony 4 应用程序（已经在共享托管服务中在线）中启用“开发”模式时，它会显示以下消息：
(1/1) ParameterNotFoundException
You have requested a non-existent parameter "locale".
in ParameterBag.php (line 100)
at ParameterBag->get('locale')
in EnvPlaceholderParameterBag.php (line 57)
at EnvPlaceholderParameterBag->get('locale')
in ParameterBag.php (line 216)
at ParameterBag->resolveString('%locale%', array('locale' => true))
in ParameterBag.php (line 187)
...
并且不允许调试应用程序。我的 config/services.yml 代码是默认的：
# Put parameters here that don't need to change on each machine where the app is deployed
# https://symfony.com/doc/current/best_practices/configuration.html#application-related-configuration
parameters:
locale: 'en'
services:
# default configuration for Services in *this* file
_defaults:
autowire: true # Automatically injects dependencies …