diff --git a/application/api/job/uploadMaterialStep.php b/application/api/job/uploadMaterialStep.php
index 98bbba9..219d0f7 100644
--- a/application/api/job/uploadMaterialStep.php
+++ b/application/api/job/uploadMaterialStep.php
@@ -56,12 +56,12 @@ class uploadMaterialStep
             $response = $oMaterial->uploadMaterialStep($data);
             // 验证API响应
             if (empty($response)) {
-                throw new RuntimeException("OpenAI API返回空结果");
+                throw new \RuntimeException("OpenAI API返回空结果");
             }
             // 检查JSON解析错误
             $aResult = json_decode($response, true);
             if (json_last_error() !== JSON_ERROR_NONE) {
-                throw new RuntimeException("解析OpenAI响应失败: " . json_last_error_msg() . " | 原始响应: {$response}");
+                throw new \RuntimeException("解析OpenAI响应失败: " . json_last_error_msg() . " | 原始响应: {$response}");
             }
             $sMsg = empty($aResult['msg']) ? '素材上传失败' : $aResult['msg'];