diff --git a/app/common.php b/app/common.php
index e711188e..3d182061 100644
--- a/app/common.php
+++ b/app/common.php
@@ -153,8 +153,12 @@ if (!function_exists('get_filesystem_url')) {
      * @param string $disk 磁盘配置 key
      * @return string
      */
-    function get_filesystem_url(string $url, string $disk): string
+    function get_filesystem_url(string|null $url, string $disk): string
     {
+        if (is_null($url)) {
+            return '';
+        }
+
         if (\think\helper\Str::startsWith($url, ['http://', 'https://', '//'])) {
             return $url;
         }
@@ -171,8 +175,12 @@ if (!function_exists('url_filesystem_detect')) {
      * @param string $url 文件地址
      * @return string
      */
-    function url_filesystem_detect(string $url): string
+    function url_filesystem_detect(string|null $url): string
     {
+        if  (is_null($url)) {
+            return '';
+        }
+
         $idx = strrpos($url, '.');
         if ($idx === false) {
             return $url;
diff --git a/public/migrate_temp_images/.gitignore b/public/migrate_temp_images/.gitignore
deleted file mode 100644
index c96a04f0..00000000
--- a/public/migrate_temp_images/.gitignore
+++ /dev/null
@@ -1,2 +0,0 @@
-*
-!.gitignore
\ No newline at end of file