服务器上是否已安装所有必需的扩展程序？
PHP> = 5.5.9 OpenSSL PHP扩展 PDO PHP扩展 Mbstring PHP扩展 Tokenizer PHP扩展可能是您缺少OpenSSL扩展名。另外，您是否在.env文件中设置了密钥？
尝试运行：
PHP artisan key:generate
答：’cipher’ => ’’没有设置。
解决方法我正在使用Laravel构建一个项目。在localhost上运行正常，但是当我将其上载到服务器（服务器已安装comodo ssl）时，出现以下错误：
RuntimeException in EncryptionServiceProvider.php line 29:No supported encrypter found. The cipher and / or key length are invalidin EncryptionServiceProvider.php line 29at EncryptionServiceProvider->IlluminateEncryption{closure}(object(Application),array()) in Container.php line 733at Container->build(object(Closure),array()) in Container.php line 626at Container->make(’encrypter’,array()) in Application.php line 674at Application->make(’IlluminateContractsEncryptionEncrypter’) in Container.php line 837at Container->resolveClass(object(ReflectionParameter)) in Container.php line 800at Container->getDependencies(array(object(ReflectionParameter)),array()) in Container.php line 771at Container->build(’SahraSalonHttpMiddlewareEncryptCookies’,array()) in Container.php line 626at Container->make(’SahraSalonHttpMiddlewareEncryptCookies’,array()) in Application.php line 674at Application->make(’SahraSalonHttpMiddlewareEncryptCookies’) in Pipeline.php line 123at Pipeline->IlluminatePipeline{closure}(object(Request)) in CheckForMaintenanceMode.php line 42at CheckForMaintenanceMode->handle(object(Request),object(Closure))at call_user_func_array(array(object(CheckForMaintenanceMode),’handle’),array(object(Request),object(Closure))) in Pipeline.php line 124at Pipeline->IlluminatePipeline{closure}(object(Request))at call_user_func(object(Closure),object(Request)) in Pipeline.php line 103at Pipeline->then(object(Closure)) in Kernel.php line 118at Kernel->sendRequestThroughRouter(object(Request)) in Kernel.php line 86at Kernel->handle(object(Request)) in index.php line 54
谁能帮助解决此错误？
