当我运行我的 PHP Yii 框架文件时，它会导致以下错误。
PHP Compile Error 'yii\base\ErrorException' with message 'Cannot redeclare GuzzleHttp\Psr7\str() (previously declared in /Applications/XAMPP/xamppfiles/htdocs/PLATO/framework/vendor/guzzlehttp/psr7/src/functions.php:19)' in /Applications/XAMPP/xamppfiles/htdocs/PLATO/protected/extensions/aws/GuzzleHttp/Psr7/functions.php:18 Stack trace: #0 [internal function]: yii\base\ErrorHandler->handleFatalError() #1 {main}
如何解决这个问题？