Update src/streamlit_app.py

src/streamlit_app.py

@@ -106,6 +106,25 @@ def main():
                             st.session_state['ai_tutor'] = ai_tutor
                             st.success(
                                 "✅ Fine-tuned model loaded successfully!")
+                        except PermissionError as e:
+                            st.error(
+                                f"❌ CACHE PERMISSION ERROR: Model download blocked")
+                            st.error(f"🔍 Error Type: {type(e).__name__}")
+                            st.error(f"🔍 Error Message: {str(e)}")
+                            st.error("🔍 This usually means:")
+                            st.error(
+                                "   1. Another user is downloading the same model (wait 5-10 minutes)")
+                            st.error(
+                                "   2. A previous download was interrupted (cache needs clearing)")
+                            st.error("🔧 Solutions:")
+                            st.error("   • Wait 5-10 minutes and try again")
+                            st.error(
+                                "   • Restart your HF Space to clear cache")
+                            st.error(
+                                "   • The model will download automatically on retry")
+                            st.error(
+                                "💡 This is temporary - the model will load once cache is cleared")
+                            st.stop()
                         except Exception as e:
                             st.error(
                                 f"❌ CRITICAL ERROR: Failed to load fine-tuned model")