Bonsai - improve error message if ifc file fails to open #5694

src/bonsai/bonsai/bim/module/project/operator.py

@@ -763,8 +763,9 @@ class LoadProject(bpy.types.Operator, IFCFileSelector):
 
     def finish_loading_project(self, context):
         try:
+            filepath = self.get_filepath()
             if not self.is_existing_ifc_file():
-                self.report({"ERROR"}, f"Couldn't find IFC file: '{self.get_filepath()}'.")
+                self.report({"ERROR"}, f"Couldn't find IFC file: '{filepath}'.")
                 return {"FINISHED"}
 
             if self.should_start_fresh_session and tool.Blender.is_default_scene():
@@ -775,7 +776,13 @@ class LoadProject(bpy.types.Operator, IFCFileSelector):
             if not self.is_advanced and not self.should_start_fresh_session:
                 bpy.ops.bim.convert_to_blender()
 
-            context.scene.BIMProperties.ifc_file = self.get_filepath()
+            context.scene.BIMProperties.ifc_file = filepath
+            if not (ifc_file := tool.Ifc.get()):
+                self.report(
+                    {"ERROR"},
+                    f"Error loading IFC file from filepath '{filepath}'. See logs above in the system console for the details.",
+                )
+                return {"CANCELLED"}
             context.scene.BIMProjectProperties.is_loading = True
             context.scene.BIMProjectProperties.total_elements = len(tool.Ifc.get().by_type("IfcElement"))
             context.scene.BIMProjectProperties.use_relative_project_path = self.use_relative_path