Improve error message

app.py

@@ -138,7 +138,7 @@ def load_recording(basedir):
     replay_file = replay_file.replace(".json", "")
     
     if not Path(basedir).joinpath('metadata.json').exists():
-        st.sidebar.error(f"Metadata file not found at {basedir}/metadata.json. This is likely an issue with Huggingface Spaces. Try cloning this repo and running locally.")
+        st.error(f"Metadata file not found at {basedir}/metadata.json. This is likely an issue with Huggingface Spaces. Try cloning this repo and running locally.")
         st.stop()
     
     metadata = load_json_no_cache(basedir, "metadata")
@@ -157,7 +157,15 @@ def load_recording(basedir):
 
     # Read in the JSON data
     replay_dict = load_json_no_cache(basedir, replay_file)
-    form = load_json(basedir, "form")
+    form = load_json_no_cache(basedir, "form")
+    
+    if replay_dict is None:
+        st.error(f"Replay file not found at {basedir}/{replay_file}. This is likely an issue with Huggingface Spaces. Try cloning this repo and running locally.")
+        st.stop()
+    
+    if form is None:
+        st.error(f"Form file not found at {basedir}/form.json. This is likely an issue with Huggingface Spaces. Try cloning this repo and running locally.")
+        st.stop()
 
     duration = replay_dict["data"][-1]["timestamp"] - replay_dict["data"][0]["timestamp"]
     duration = time.strftime("%M:%S", time.gmtime(duration))

utils.py

@@ -37,10 +37,12 @@ def load_json(basedir, name):
 def load_json_no_cache(basedir, name):
     if not os.path.exists(f"{basedir}/{name}.json"):
         return None
-
-    with open(f"{basedir}/{name}.json", "r") as f:
-        j = json.load(f)
-
+    try:
+        with open(f"{basedir}/{name}.json", "r") as f:
+            j = json.load(f)
+    except:
+        return None
+    
     return j