为了能快速了解并处理您的问题，请提供以下基础信息： 问题描述：我买了一个Laravel 框架做的源码，安装的时候提示错误，我查看了错误日志，说是缺少了一个symlink函数，我的是php8.1 我查看了扩展和ini文件都没有找到这个扩展，请问我要怎么才能安装和启用这个扩展？
相关截图（日志、错误）： local.ERROR: Call to undefined function Illuminate\Filesystem\symlink() {"exception":"[object] (Error(code: 0): Call to undefined function Illuminate\\Filesystem\\symlink() at /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Filesystem/Filesystem.php:340) [stacktrace] #0 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Foundation/Console/StorageLinkCommand.php(60): Illuminate\\Filesystem\\Filesystem->link() #1 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Container/BoundMethod.php(36): Illuminate\\Foundation\\Console\\StorageLinkCommand->handle() #2 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Container/Util.php(41): Illuminate\\Container\\BoundMethod::Illuminate\\Container\\{closure}() #3 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Container/BoundMethod.php(93): Illuminate\\Container\\Util::unwrapIfClosure() #4 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Container/BoundMethod.php(37): Illuminate\\Container\\BoundMethod::callBoundMethod() #5 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Container/Container.php(661): Illuminate\\Container\\BoundMethod::call() #6 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Console/Command.php(183): Illuminate\\Container\\Container->call() #7 /www/wwwroot/xxxxx.xxx/vendor/symfony/console/Command/Command.php(326): Illuminate\\Console\\Command->execute() #8 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Console/Command.php(153): Symfony\\Component\\Console\\Command\\Command->run() #9 /www/wwwroot/xxxxx.xxx/vendor/symfony/console/Application.php(1063): Illuminate\\Console\\Command->run() #10 /www/wwwroot/xxxxx.xxx/vendor/symfony/console/Application.php(320): Symfony\\Component\\Console\\Application->doRunCommand() #11 /www/wwwroot/xxxxx.xxx/vendor/symfony/console/Application.php(174): Symfony\\Component\\Console\\Application->doRun() #12 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Console/Application.php(102): Symfony\\Component\\Console\\Application->run() #13 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Console/Application.php(194): Illuminate\\Console\\Application->run() #14 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Foundation/Console/Kernel.php(336): Illuminate\\Console\\Application->call() #15 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Support/Facades/Facade.php(338): Illuminate\\Foundation\\Console\\Kernel->call() #16 /www/wwwroot/xxxxx.xxx/app/Http/Controllers/Admin/InstallController.php(127): Illuminate\\Support\\Facades\\Facade::__callStatic() #17 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Routing/Controller.php(54): App\\Http\\Controllers\\Admin\\InstallController->activation() #18 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php(43): Illuminate\\Routing\\Controller->callAction() #19 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Routing/Route.php(260): Illuminate\\Routing\\ControllerDispatcher->dispatch() #20 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Routing/Route.php(205): Illuminate\\Routing\\Route->runController() #21 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Routing/Router.php(798): Illuminate\\Routing\\Route->run() #22 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(141): Illuminate\\Routing\\Router->Illuminate\\Routing\\{closure}() #23 /www/wwwroot/xxxxx.xxx/app/Http/Middleware/Install.php(21): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}() #24 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): App\\Http\\Middleware\\Install->handle() #25 /www/wwwroot/xxxxx.xxx/vendor/php-flasher/flasher-laravel/Middleware/FlasherMiddleware.php(34): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}() #26 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): Flasher\\Laravel\\Middleware\\FlasherMiddleware->handle() #27 /www/wwwroot/xxxxx.xxx/vendor/php-flasher/flasher-laravel/Middleware/SessionMiddleware.php(34): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}() #28 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): Flasher\\Laravel\\Middleware\\SessionMiddleware->handle() #29 /www/wwwroot/xxxxx.xxx/app/Http/Middleware/ActiveUser.php(40): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}() #30 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): App\\Http\\Middleware\\ActiveUser->handle() #31 /www/wwwroot/xxxxx.xxx/app/Http/Middleware/CheckReferral.php(28): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}() #32 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): App\\Http\\Middleware\\CheckReferral->handle() #33 /www/wwwroot/xxxxx.xxx/app/Http/Middleware/UserActivity.php(38): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}() #34 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): App\\Http\\Middleware\\UserActivity->handle() #35 /www/wwwroot/xxxxx.xxx/app/Http/Middleware/SetLocale.php(40): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}() #36 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): App\\Http\\Middleware\\SetLocale->handle() #37 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Routing/Middleware/SubstituteBindings.php(50): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}() #38 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): Illuminate\\Routing\\Middleware\\SubstituteBindings->handle() #39 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/VerifyCsrfToken.php(78): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}() #40 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): Illuminate\\Foundation\\Http\\Middleware\\VerifyCsrfToken->handle() #41 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/View/Middleware/ShareErrorsFromSession.php(49): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}() #42 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): Illuminate\\View\\Middleware\\ShareErrorsFromSession->handle() #43 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Session/Middleware/StartSession.php(121): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}() #44 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Session/Middleware/StartSession.php(64): Illuminate\\Session\\Middleware\\StartSession->handleStatefulRequest() #45 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): Illuminate\\Session\\Middleware\\StartSession->handle() #46 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Cookie/Middleware/AddQueuedCookiesToResponse.php(37): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}() #47 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): Illuminate\\Cookie\\Middleware\\AddQueuedCookiesToResponse->handle() #48 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Cookie/Middleware/EncryptCookies.php(67): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}() #49 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): Illuminate\\Cookie\\Middleware\\EncryptCookies->handle() #50 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(116): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}() #51 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Routing/Router.php(799): Illuminate\\Pipeline\\Pipeline->then() #52 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Routing/Router.php(776): Illuminate\\Routing\\Router->runRouteWithinStack() #53 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Routing/Router.php(740): Illuminate\\Routing\\Router->runRoute() #54 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Routing/Router.php(729): Illuminate\\Routing\\Router->dispatchToRoute() #55 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(190): Illuminate\\Routing\\Router->dispatch() #56 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(141): Illuminate\\Foundation\\Http\\Kernel->Illuminate\\Foundation\\Http\\{closure}() #57 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TransformsRequest.php(21): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}() #58 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/ConvertEmptyStringsToNull.php(31): Illuminate\\Foundation\\Http\\Middleware\\TransformsRequest->handle() #59 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): Illuminate\\Foundation\\Http\\Middleware\\ConvertEmptyStringsToNull->handle() #60 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TransformsRequest.php(21): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}() #61 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TrimStrings.php(40): Illuminate\\Foundation\\Http\\Middleware\\TransformsRequest->handle() #62 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): Illuminate\\Foundation\\Http\\Middleware\\TrimStrings->handle() #63 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/ValidatePostSize.php(27): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}() #64 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): Illuminate\\Foundation\\Http\\Middleware\\ValidatePostSize->handle() #65 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/PreventRequestsDuringMaintenance.php(86): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}() #66 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): Illuminate\\Foundation\\Http\\Middleware\\PreventRequestsDuringMaintenance->handle() #67 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Http/Middleware/HandleCors.php(49): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}() #68 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): Illuminate\\Http\\Middleware\\HandleCors->handle() #69 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Http/Middleware/TrustProxies.php(39): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}() #70 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): Illuminate\\Http\\Middleware\\TrustProxies->handle() #71 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(116): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}() #72 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(165): Illuminate\\Pipeline\\Pipeline->then() #73 /www/wwwroot/xxxxx.xxx/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(134): Illuminate\\Foundation\\Http\\Kernel->sendRequestThroughRouter() #74 /www/wwwroot/xxxxx.xxx/public/index.php(52): Illuminate\\Foundation\\Http\\Kernel->handle() #75 {main} "}
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运维要高效，装宝塔
