diff --git a/library/src/main/ets/ImageKnifeLoader.ets b/library/src/main/ets/ImageKnifeLoader.ets
index f8cd230..8797ff7 100644
--- a/library/src/main/ets/ImageKnifeLoader.ets
+++ b/library/src/main/ets/ImageKnifeLoader.ets
@@ -379,7 +379,7 @@ export class ImageKnifeLoader {
               fs.closeSync(file);
             }
           } catch (err) {
-            loadError = err
+            loadError = 'Retrieve from file error:' + err
           }
         }
       } else if (typeof request.src == "number") { //从资源文件获取