data_handler_cache error message: ERROR sgtk.env.project.tk-nuke.tk-multi-workfiles2 Failed to create File Open dialog!
Use case:
It happens when launching an app like Nuke, tk-multi-workfiles2 File Open dialog fails with an error at the end of the stack trace about the get_children method of data_handler_cache failing to iterate because it’s been passed a string value when it’s expected a dict.
The full stack looks something like:
2020-12-07 09:42:03,571 [7192 ERROR sgtk.env.project.tk-nuke.tk-multi-workfiles2] Failed to create File Open dialog!
Traceback (most recent call last):
File "X:\sgtk_studio\_projects\Endlings2\shotgun_configuration\install\app_store\tk-multi-workfiles2\v0.11.8\python\tk_multi_workfiles\work_files.py", line 115, in _show_file_dlg
self._dialog_launcher(dlg_name, app, form)
File "X:\sgtk_studio\_projects\Endlings2\shotgun_configuration\install\core\python\tank\platform\engine.py", line 1822, in show_dialog
dialog, widget = self._create_dialog_with_widget(title, bundle, widget_class, *args, **kwargs)
File "X:\sgtk_studio\_projects\Endlings2\shotgun_configuration\install\core\python\tank\platform\engine.py", line 1684, in _create_dialog_with_widget
widget = self._create_widget(widget_class, *args, **kwargs)
File "X:\sgtk_studio\_projects\Endlings2\shotgun_configuration\install\core\python\tank\platform\engine.py", line 1658, in _create_widget
widget = derived_widget_class(*args, **kwargs)
File "X:\sgtk_studio\_projects\Endlings2\shotgun_configuration\install\app_store\tk-multi-workfiles2\v0.11.8\python\tk_multi_workfiles\file_open_form.py", line 46, in __init__
FileFormBase.__init__(self, parent)
File "X:\sgtk_studio\_projects\Endlings2\shotgun_configuration\install\app_store\tk-multi-workfiles2\v0.11.8\python\tk_multi_workfiles\file_form_base.py", line 64, in __init__
self._my_tasks_model = self._build_my_tasks_model()
File "X:\sgtk_studio\_projects\Endlings2\shotgun_configuration\install\app_store\tk-multi-workfiles2\v0.11.8\python\tk_multi_workfiles\file_form_base.py", line 134, in _build_my_tasks_model
bg_task_manager=self._bg_task_manager)
File "X:\sgtk_studio\_projects\Endlings2\shotgun_configuration\install\app_store\tk-multi-workfiles2\v0.11.8\python\tk_multi_workfiles\my_tasks\my_tasks_model.py", line 57, in __init__
bg_task_manager=bg_task_manager
File "X:\sgtk_studio\_projects\Endlings2\shotgun_configuration\install\app_store\tk-multi-workfiles2\v0.11.8\python\tk_multi_workfiles\entity_models\extended_model.py", line 74, in __init__
**kwargs
File "X:\sgtk_studio\_projects\Endlings2\shotgun_configuration\install\app_store\tk-framework-shotgunutils\v5.5.0\python\shotgun_model\shotgun_entity_model.py", line 70, in __init__
self._load_data(entity_type, filters, hierarchy, fields)
File "X:\sgtk_studio\_projects\Endlings2\shotgun_configuration\install\app_store\tk-framework-shotgunutils\v5.5.0\python\shotgun_model\shotgun_model.py", line 367, in _load_data
self._create_item
File "X:\sgtk_studio\_projects\Endlings2\shotgun_configuration\install\core\python\tank\log.py", line 503, in wrapper
response = func(*args, **kwargs)
File "X:\sgtk_studio\_projects\Endlings2\shotgun_configuration\install\app_store\tk-framework-shotgunutils\v5.5.0\python\shotgun_model\data_handler.py", line 266, in generate_child_nodes
for data_item in self._cache.get_children(unique_id):
File "X:\sgtk_studio\_projects\Endlings2\shotgun_configuration\install\app_store\tk-framework-shotgunutils\v5.5.0\python\shotgun_model\data_handler_cache.py", line 129, in get_children
for item in cache_node[self.CACHE_CHILDREN].itervalues():
AttributeError: 'str' object has no attribute 'itervalues'
What’s causing the error?
Something has gone wrong in our caching, you should be able to fix it by removing the cache (see next section).
How to fix
Follow these instructions on where to find the cache and remove it. You can wipe the whole thing, though that will cause a delay when you restart Desktop next time while it downloads everything. It’s recommended that you wipe the folder named after your ShotGrid site that sits inside the root cache folder, there will still be a bit of rebuilding but not as much.