Update app.py

app.py

@@ -9,7 +9,7 @@ import cv2
 import numpy as np
 from PIL import Image
 import gradio as gr
-from roboflow import Roboflow  # removed RoboflowError, just import Roboflow
+from roboflow import Roboflow
 
 
 def parse_roboflow_url(url: str):
@@ -159,7 +159,7 @@ def upload_and_train_detection(
     rf = Roboflow(api_key=api_key)
     ws = rf.workspace(workspace)
 
-    # get‑or‑create project by inspecting exception text
+    # 1) Try to fetch existing project
     try:
         proj = ws.project(project_slug)
     except Exception as e:
@@ -173,7 +173,18 @@ def upload_and_train_detection(
         else:
             raise
 
-    # upload & train
+    # 2) If it exists but is NOT object-detection, make a fresh slug
+    if getattr(proj, "annotation", None) != project_type:
+        new_slug = project_slug + "-v2"
+        proj = ws.create_project(
+            new_slug,
+            annotation=project_type,
+            project_type=project_type,
+            project_license=project_license
+        )
+        project_slug = new_slug
+
+    # 3) Upload train/val/test
     ws.upload_dataset(
         dataset_path,
         project_slug,
@@ -181,6 +192,7 @@ def upload_and_train_detection(
         project_type=project_type
     )
 
+    # 4) Generate new version & train
     version_num = proj.generate_version(settings={
         "augmentation": {},
         "preprocessing": {},