update

src/PhotoCollector/MainForm.cs

@@ -135,6 +135,7 @@ namespace PhotoCollector
                 try
                 {
                     var file = o["file"];
+                    Directory.CreateDirectory(Path.GetDirectoryName(file));
                     File.WriteAllBytes(file, Convert.FromBase64String(o["base64"].Split(',')[1]));
                     File.WriteAllText(file + ".meta", FileMd5(file));
                 }