框架本地无法运行，修复尝试

vendor/psr/http-message/src/ResponseInterface.php

@@ -1,7 +1,5 @@
 <?php
 
-declare(strict_types=1);
-
 namespace Psr\Http\Message;
 
 /**
@@ -29,7 +27,7 @@ interface ResponseInterface extends MessageInterface
      *
      * @return int Status code.
      */
-    public function getStatusCode();
+    public function getStatusCode(): int;
 
     /**
      * Return an instance with the specified status code and, optionally, reason phrase.
@@ -51,7 +49,7 @@ interface ResponseInterface extends MessageInterface
      * @return static
      * @throws \InvalidArgumentException For invalid status code arguments.
      */
-    public function withStatus(int $code, string $reasonPhrase = '');
+    public function withStatus(int $code, string $reasonPhrase = ''): ResponseInterface;
 
     /**
      * Gets the response reason phrase associated with the status code.
@@ -66,5 +64,5 @@ interface ResponseInterface extends MessageInterface
      * @link http://www.iana.org/assignments/http-status-codes/http-status-codes.xhtml
      * @return string Reason phrase; must return an empty string if none present.
      */
-    public function getReasonPhrase();
+    public function getReasonPhrase(): string;
 }