问题描述：迁移了一下服务器，就报错了报错内容： Warning: Undefined array key "data" in /www/wwwroot/community.dtnetwork.top/vendor/flarum/core/src/Frontend/Content/CorePayload.php on line 74 Fatal error: Uncaught Laminas\HttpHandlerRunner\Exception\EmitterException: Output has been emitted previously; cannot emit response in /www/wwwroot/community.dtnetwork.top/vendor/laminas/laminas-httphandlerrunner/src/Exception/EmitterException.php:24 Stack trace: #0 /www/wwwroot/community.dtnetwork.top/vendor/laminas/laminas-httphandlerrunner/src/Emitter/SapiEmitterTrait.php(40): Laminas\HttpHandlerRunner\Exception\EmitterException::forOutputSent() #1 /www/wwwroot/community.dtnetwork.top/vendor/laminas/laminas-httphandlerrunner/src/Emitter/SapiEmitter.php(27): Laminas\HttpHandlerRunner\Emitter\SapiEmitter->assertNoPreviousOutput() #2 /www/wwwroot/community.dtnetwork.top/vendor/laminas/laminas-httphandlerrunner/src/RequestHandlerRunner.php(98): Laminas\HttpHandlerRunner\Emitter\SapiEmitter->emit() #3 /www/wwwroot/community.dtnetwork.top/vendor/flarum/core/src/Http/Server.php(44): Laminas\HttpHandlerRunner\RequestHandlerRunner->run() #4 /www/wwwroot/community.dtnetwork.top/public/index.php(26): Flarum\Http\Server->listen() #5 {main} thrown in /www/wwwroot/community.dtnetwork.top/vendor/laminas/laminas-httphandlerrunner/src/Exception/EmitterException.php on line 24 if(window.hljsLoader && !document.currentScript.parentNode.hasAttribute('data-s9e-livepreview-onupdate')) { window.hljsLoader.highlightBlocks(document.currentScript.parentNode); } 网址： https://community.dtnetwork.top/

[未知用户] 折腾一会后换了一种报错

https://discuss.flarum.org/d/29696-an-error-occurred-after-the-site-was-transferred/10 现在还是这样

迁移了一下服务器，就报错了

DeepLearning

essesoul 请问大佬解决这个问题了吗？
我这边也遇到了这个烦人的问题，

<b>Fatal error</b>: Uncaught Laminas\HttpHandlerRunner\Exception\EmitterException: Output has been emitted previously; cannot emit response in /www/wwwroot/domain.com/vendor/laminas/laminas-httphandlerrunner/src/Exception/EmitterException.php:24

yannis

你的php版本是多少？

DeepLearning

yannis 我的系统信息如下：

php: 7.3.27
flarumv1.1.1
mysql: 8.0.23

点击一两次没问题，多进入几次不同的主页就报错了，属于时好时坏，愁死人了

另外我看flarum 1.1.1 要求php>7.3,

yannis

DeepLearning

尝试更新php版本看看