I have zero knowledge of programming. The problem I am facing is when installing addon it is showing to upgrade to 2.8x version.
Here's the part of the code. where one of the warnings is showed.
def register():
bpy.utils.register_module(__name__)
bpy.types.INFO_MT_file_import.append(import_bob_menu)
bpy.types.INFO_MT_file_export.append(export_bob_menu)
bpy.types.INFO_MT_file_import.append(import_cob_menu)
bpy.types.INFO_MT_file_export.append(export_cob_menu)
bpy.types.INFO_MT_file_import.append(import_leveldefs)
bpy.types.INFO_MT_file_export.append(export_leveldefs)
def unregister():
bpy.utils.unregister_module(__name__)
bpy.types.INFO_MT_file_import.remove(import_bob_menu)
bpy.types.INFO_MT_file_export.remove(export_bob_menu)
bpy.types.INFO_MT_file_import.remove(import_cob_menu)
bpy.types.INFO_MT_file_export.remove(export_cob_menu)
bpy.types.INFO_MT_file_import.remove(import_leveldefs)
bpy.types.INFO_MT_file_export.remove(export_leveldefs)
```