diff --git a/src/gh/diffCheck/diffCheck/df_joint_detector.py b/src/gh/diffCheck/diffCheck/df_joint_detector.py
index cd3553ec..2a9f0e93 100644
--- a/src/gh/diffCheck/diffCheck/df_joint_detector.py
+++ b/src/gh/diffCheck/diffCheck/df_joint_detector.py
@@ -101,6 +101,8 @@ def run(self) :
                     break
 
             if is_hole:
+                # TODO: for future development get rid of error
+                raise NotImplementedError("Hole detected, not implemented yet.")
                 self._holes.append(b)
             elif is_cut: 
                 self._cuts.append(b)
diff --git a/src/gh/diffCheck/diffCheck_app.py b/src/gh/diffCheck/diffCheck_app.py
index de99baf5..a0f84437 100644
--- a/src/gh/diffCheck/diffCheck_app.py
+++ b/src/gh/diffCheck/diffCheck_app.py
@@ -19,7 +19,7 @@
         :param i_export_dir: directory to export the xml
         :param i_dump: whether to dump the xml
     """
-    # data_faces = diffCheck.df_joint_detector.JointDetector(i_breps[0]).run()
+    # o_joints = diffCheck.df_joint_detector.JointDetector(i_breps[0]).run()
     # beams
     beams = []
     for brep in i_breps: