执行Laravel artisan命令时遇Call to undefined method异常求助

项目搭建完成后，执行artisan serve启动本地Laravel服务器时触发异常，报错信息如下：

In PackageManifest.php line 130:
                                                                         
  Call to undefined method Illuminate\Support\Collection::mapWithKeys()

补充日志信息（UPD） #

laravel.log日志内容：

[2022-12-31 10:46:59] laravel.EMERGENCY: Unable to create configured logger. Using emergency logger. {"exception":"[object] (Error(code: 0): Call to undefined method Illuminate\\Support\\Collection::flatMap() at vendor/laravel/framework/src/Illuminate/Log/LogManager.php:252)
[stacktrace]
#0 vendor/laravel/framework/src/Illuminate/Log/LogManager.php(210): Illuminate\Log\LogManager->createStackDriver()
#1 vendor/laravel/framework/src/Illuminate/Log/LogManager.php(125): Illuminate\Log\LogManager->resolve()
#2 vendor/laravel/framework/src/Illuminate/Log/LogManager.php(112): Illuminate\Log\LogManager->get()
#3 vendor/laravel/framework/src/Illuminate/Log/LogManager.php(590): Illuminate\Log\LogManager->driver()
#4 vendor/laravel/framework/src/Illuminate/Foundation/Exceptions/Handler.php(252): Illuminate\Log\LogManager->error()
#5 app/Exceptions/Handler.php(53): Illuminate\Foundation\Exceptions\Handler->report()
#6 vendor/laravel/framework/src/Illuminate/Foundation/Console/Kernel.php(366): App\Exceptions\Handler->report()
#7 vendor/laravel/framework/src/Illuminate/Foundation/Console/Kernel.php(131): Illuminate\Foundation\Console\Kernel->reportException()
#8 artisan(35): Illuminate\Foundation\Console\Kernel->handle()
#9 {main}
"} 
[2022-12-31 10:46:59] laravel.ERROR: Call to undefined method Illuminate\Support\Collection::mapWithKeys() {"exception":"[object] (Error(code: 0): Call to undefined method Illuminate\\Support\\Collection::mapWithKeys() at vendor/laravel/framework/src/Illuminate/Foundation/PackageManifest.php:130)
[stacktrace]
#0 vendor/laravel/framework/src/Illuminate/Foundation/PackageManifest.php(106): Illuminate\Foundation\PackageManifest->build()
#1 vendor/laravel/framework/src/Illuminate/Foundation/PackageManifest.php(89): Illuminate\Foundation\PackageManifest->getManifest()
#2 vendor/laravel/framework/src/Illuminate/Foundation/PackageManifest.php(78): Illuminate\Foundation\PackageManifest->config()
#3 vendor/laravel/framework/src/Illuminate/Foundation/Bootstrap/RegisterFacades.php(26): Illuminate\Foundation\PackageManifest->aliases()
#4 vendor/laravel/framework/src/Illuminate/Foundation/Application.php(237): Illuminate\Foundation\Bootstrap\RegisterFacades->bootstrap()
#5 vendor/laravel/framework/src/Illuminate/Foundation/Console/Kernel.php(310): Illuminate\Foundation\Application->bootstrapWith()
#6 vendor/laravel/framework/src/Illuminate/Foundation/Console/Kernel.php(127): Illuminate\Foundation\Console\Kernel->bootstrap()
#7 artisan(35): Illuminate\Foundation\Console\Kernel->handle()
#8 {main}
"} 

相关代码片段 #

PackageManifest.php中触发错误的代码片段：

$this->write(collect($packages)->mapWithKeys(function ($package) {
        return [$this->format($package['name']) => $package['extra']['laravel'] ?? []];
    })->each(function ($configuration) use (&$ignore) {
        $ignore = array_merge($ignore, $configuration['dont-discover'] ?? []);
    })->reject(function ($configuration, $package) use ($ignore, $ignoreAll) {
        return $ignoreAll || in_array($package, $ignore);
    })->filter()->all());

解决方案 #

问题原因 #

mapWithKeys()和flatMap()是Illuminate\Support 5.4版本之后新增的Collection方法，出现该错误说明Laravel框架版本与依赖的Illuminate组件版本不匹配，大概率是依赖安装时版本不一致，或是框架版本过低导致的。

解决步骤 #

1. 删除项目根目录下的vendor文件夹和composer.lock文件
2. 执行composer install重新安装所有依赖，Composer会自动根据Laravel版本拉取兼容的组件版本
3. 若重新安装后仍报错，检查composer.json中的Laravel版本号，确认其对应的Illuminate组件版本要求，避免手动修改组件版本引发冲突
4. 如果是手动升级Laravel框架导致的问题，需确保所有核心组件同步升级，不要只升级部分包

内容的提问来源于stack exchange，提问作者Max Slyusarchuk