whoops, looks like something went wrong.
1/1
runtimeexception in compiled.php line 7737:
no supported encrypter found. the cipher and / or key length are invalid.
in compiled.php line 7737
at encryptionserviceprovider->getencrypterforkeyandcipher(null, 'aes-256-cbc') in compiled.php line 7727
at encryptionserviceprovider->illuminateencryption{closure}(object(application), array()) in compiled.php line 1353
at container->build(object(closure), array()) in compiled.php line 1309
at container->make('encrypter', array()) in compiled.php line 1871
at application->make('illuminatecontractsencryptionencrypter') in compiled.php line 1410
at container->resolveclass(object(reflectionparameter)) in compiled.php line 1387
at container->getdependencies(array(object(reflectionparameter)), array()) in compiled.php line 1373
at container->build('apphttpmiddlewareencryptcookies', array()) in compiled.php line 1309
at container->make('apphttpmiddlewareencryptcookies', array()) in compiled.php line 1871
at application->make('apphttpmiddlewareencryptcookies') in compiled.php line 9921
at pipeline->illuminatepipeline{closure}(object(request))
at call_user_func(object(closure), object(request)) in pipeline.php line 32
at pipeline->illuminaterouting{closure}(object(request))
at call_user_func(object(closure), object(request)) in compiled.php line 9911
at pipeline->then(object(closure)) in compiled.php line 8192
at router->runroutewithinstack(object(route), object(request)) in compiled.php line 8183
at router->dispatchtoroute(object(request)) in compiled.php line 8173
at router->dispatch(object(request)) in compiled.php line 2416
at kernel->illuminatefoundationhttp{closure}(object(request))
at call_user_func(object(closure), object(request)) in pipeline.php line 52
at pipeline->illuminaterouting{closure}(object(request)) in compiled.php line 3283
at checkformaintenancemode->handle(object(request), object(closure))
at call_user_func_array(array(object(checkformaintenancemode), 'handle'), array(object(request), object(closure))) in compiled.php line 9926
at pipeline->illuminatepipeline{closure}(object(request))
at call_user_func(object(closure), object(request)) in pipeline.php line 32
at pipeline->illuminaterouting{closure}(object(request))
at call_user_func(object(closure), object(request)) in compiled.php line 9911
at pipeline->then(object(closure)) in compiled.php line 2363
at kernel->sendrequestthroughrouter(object(request)) in compiled.php line 2347
at kernel->handle(object(request)) in index.php line 54
whoops, looks like something went wrong.
1/1
runtimeexception in compiled.php line 7737:
no supported encrypter found. the cipher and / or key length are invalid.
in compiled.php line 7737
at encryptionserviceprovider->getencrypterforkeyandcipher(null, 'aes-256-cbc') in compiled.php line 7727
at encryptionserviceprovider->illuminateencryption{closure}(object(application), array()) in compiled.php line 1353
at container->build(object(closure), array()) in compiled.php line 1309
at container->make('encrypter', array()) in compiled.php line 1871
at application->make('illuminatecontractsencryptionencrypter') in compiled.php line 1410
at container->resolveclass(object(reflectionparameter)) in compiled.php line 1387
at container->getdependencies(array(object(reflectionparameter)), array()) in compiled.php line 1373
at container->build('apphttpmiddlewareencryptcookies', array()) in compiled.php line 1309
at container->make('apphttpmiddlewareencryptcookies', array()) in compiled.php line 1871
at application->make('apphttpmiddlewareencryptcookies') in compiled.php line 2370
at kernel->terminate(object(request), object(response)) in index.php line 58
回复内容：
whoops, looks like something went wrong.
1/1
runtimeexception in compiled.php line 7737:
no supported encrypter found. the cipher and / or key length are invalid.
in compiled.php line 7737
at encryptionserviceprovider->getencrypterforkeyandcipher(null, 'aes-256-cbc') in compiled.php line 7727
at encryptionserviceprovider->illuminateencryption{closure}(object(application), array()) in compiled.php line 1353
at container->build(object(closure), array()) in compiled.php line 1309
at container->make('encrypter', array()) in compiled.php line 1871
at application->make('illuminatecontractsencryptionencrypter') in compiled.php line 1410
at container->resolveclass(object(reflectionparameter)) in compiled.php line 1387
at container->getdependencies(array(object(reflectionparameter)), array()) in compiled.php line 1373
at container->build('apphttpmiddlewareencryptcookies', array()) in compiled.php line 1309
at container->make('apphttpmiddlewareencryptcookies', array()) in compiled.php line 1871
at application->make('apphttpmiddlewareencryptcookies') in compiled.php line 9921
at pipeline->illuminatepipeline{closure}(object(request))
at call_user_func(object(closure), object(request)) in pipeline.php line 32
at pipeline->illuminaterouting{closure}(object(request))
at call_user_func(object(closure), object(request)) in compiled.php line 9911
at pipeline->then(object(closure)) in compiled.php line 8192
at router->runroutewithinstack(object(route), object(request)) in compiled.php line 8183
at router->dispatchtoroute(object(request)) in compiled.php line 8173
at router->dispatch(object(request)) in compiled.php line 2416
at kernel->illuminatefoundationhttp{closure}(object(request))
at call_user_func(object(closure), object(request)) in pipeline.php line 52
at pipeline->illuminaterouting{closure}(object(request)) in compiled.php line 3283
at checkformaintenancemode->handle(object(request), object(closure))
at call_user_func_array(array(object(checkformaintenancemode), 'handle'), array(object(request), object(closure))) in compiled.php line 9926
at pipeline->illuminatepipeline{closure}(object(request))
at call_user_func(object(closure), object(request)) in pipeline.php line 32
at pipeline->illuminaterouting{closure}(object(request))
at call_user_func(object(closure), object(request)) in compiled.php line 9911
at pipeline->then(object(closure)) in compiled.php line 2363
at kernel->sendrequestthroughrouter(object(request)) in compiled.php line 2347
at kernel->handle(object(request)) in index.php line 54
whoops, looks like something went wrong.
1/1
runtimeexception in compiled.php line 7737:
no supported encrypter found. the cipher and / or key length are invalid.
in compiled.php line 7737
at encryptionserviceprovider->getencrypterforkeyandcipher(null, 'aes-256-cbc') in compiled.php line 7727
at encryptionserviceprovider->illuminateencryption{closure}(object(application), array()) in compiled.php line 1353
at container->build(object(closure), array()) in compiled.php line 1309
at container->make('encrypter', array()) in compiled.php line 1871
at application->make('illuminatecontractsencryptionencrypter') in compiled.php line 1410
at container->resolveclass(object(reflectionparameter)) in compiled.php line 1387
at container->getdependencies(array(object(reflectionparameter)), array()) in compiled.php line 1373
at container->build('apphttpmiddlewareencryptcookies', array()) in compiled.php line 1309
at container->make('apphttpmiddlewareencryptcookies', array()) in compiled.php line 1871
at application->make('apphttpmiddlewareencryptcookies') in compiled.php line 2370
at kernel->terminate(object(request), object(response)) in index.php line 58
php artisan key:generate 在命令行生成一个key
把.env的配置 app_key设置一下就可以了,我最近也在学遇到了一样的问题
app_key 无效，配置正确的app_key即可