No need to install this bt5 (i.e. leave default Wendelin core objects as defined in erp5_wendelin).

bt5/erp5_wendelin_configurator/SkinTemplateItem/portal_skins/erp5_configurator_wendelin/BusinessConfiguration_setupWendelinStandardBT5.py

@@ -28,7 +28,6 @@ bt5_installation_list = ('erp5_full_text_mroonga_catalog',
                          'erp5_web_renderjs_ui',
                          'erp5_wendelin',
                          'erp5_wendelin_examples',
-                         'erp5_wendelin_data',
                          'erp5_wendelin_development',
                          'erp5_notebook'
                         )