>Traceback (most recent call last):


 "/Applications/Blender.app/Contents/Resources/2.82/scripts/addons/io_scene_gltf2/__init__.py", line 850, in execute

return self.import_gltf2(context)


 "/Applications/Blender.app/Contents/Resources/2.82/scripts/addons/io_scene_gltf2/__init__.py", line 864, in import_gltf2

if self.unit_import(path, import_settings) == {'FINISHED'}:


 "/Applications/Blender.app/Contents/Resources/2.82/scripts/addons/io_scene_gltf2/__init__.py", line 887, in unit_import

BlenderGlTF.create(self.gltf_importer)


 "/Applications/Blender.app/Contents/Resources/2.82/scripts/addons/io_scene_gltf2/blender/imp/gltf2_blender_gltf.py", line 41, in create

BlenderScene.create(gltf, scene_idx)


 "/Applications/Blender.app/Contents/Resources/2.82/scripts/addons/io_scene_gltf2/blender/imp/gltf2_blender_scene.py", line 80, in create

BlenderNode.create(gltf, node_idx, None)
# None => No parent


 "/Applications/Blender.app/Contents/Resources/2.82/scripts/addons/io_scene_gltf2/blender/imp/gltf2_blender_node.py", line 174, in create

BlenderNode.create(gltf, child_idx, node_idx)


 "/Applications/Blender.app/Contents/Resources/2.82/scripts/addons/io_scene_gltf2/blender/imp/gltf2_blender_node.py", line 64, in create

mesh = BlenderMesh.create(gltf, pynode.mesh, node_idx, parent)


 "/Applications/Blender.app/Contents/Resources/2.82/scripts/addons/io_scene_gltf2/blender/imp/gltf2_blender_mesh.py", line 57, in create

BlenderMaterial.create(gltf, prim.material, vertex_color)


 "/Applications/Blender.app/Contents/Resources/2.82/scripts/addons/io_scene_gltf2/blender/imp/gltf2_blender_material.py", line 98, in create

BlenderNormalMap.create(gltf, material_idx, vertex_color)


 "/Applications/Blender.app/Contents/Resources/2.82/scripts/addons/io_scene_gltf2/blender/imp/gltf2_blender_map_normal.py", line 29, in create

BlenderNormalMap.create_nodetree(gltf, material_idx, vertex_color)


 "/Applications/Blender.app/Contents/Resources/2.82/scripts/addons/io_scene_gltf2/blender/imp/gltf2_blender_map_normal.py", line 42, in create_nodetree

if len([node for node in node_tree.nodes if node.type == "BSDF_PRINCIPLED"]) != 0:
AttributeError: 'NoneType' object has no attribute 'nodes'

Traceback (most recent call last):


 "/opt/stackstorm/st2/local/lib/python2.7/site-packages/st2common/middleware/error_handling.py", line 39, in __call__

return self.app(environ, start_response)


 "/opt/stackstorm/st2/local/lib/python2.7/site-packages/st2common/middleware/logging.py", line 69, in __call__

retval = self.app(environ, custom_start_response)


 "/opt/stackstorm/st2/local/lib/python2.7/site-packages/st2common/middleware/cors.py", line 75, in __call__

return self.app(environ, custom_start_response)


 "/opt/stackstorm/st2/local/lib/python2.7/site-packages/st2common/router.py", line 429, in as_wsgi

resp = self(req)


 "/opt/stackstorm/st2/local/lib/python2.7/site-packages/st2common/router.py", line 402, in __call__

resp = func(**kw)


 "/opt/stackstorm/st2/local/lib/python2.7/site-packages/st2api/controllers/v1/triggers.py", line 59, in get_one

return super(TriggerTypeController, self).get_one(triggertype_ref_or_id, **kwargs)


 "/opt/stackstorm/st2/local/lib/python2.7/site-packages/st2api/controllers/resource.py", line 360, in get_one

return self._get_one(ref_or_id, from_model_kwargs=from_model_kwargs)


 "/opt/stackstorm/st2/local/lib/python2.7/site-packages/st2api/controllers/resource.py", line 379, in _get_one

permission_type=permission_type)


 "/opt/stackstorm/st2/local/lib/python2.7/site-packages/st2common/rbac/utils.py", line 119, in assert_user_has_resource_db_permission

permission_type=permission_type)


 "/opt/stackstorm/st2/local/lib/python2.7/site-packages/st2common/rbac/utils.py", line 300, in user_has_resource_db_permission

resolver = resolvers.get_resolver_for_permission_type(permission_type=permission_type)


 "/opt/stackstorm/st2/local/lib/python2.7/site-packages/st2common/rbac/resolvers.py", line 867, in get_resolver_for_permission_type

resource_type = PermissionType.get_resource_type(permission_type=permission_type)


 "/opt/stackstorm/st2/local/lib/python2.7/site-packages/st2common/rbac/types.py", line 139, in get_resource_type

split = permission_type.split('_')
AttributeError: 'NoneType' object has no attribute 'split' (_exception_data={},_exception_class='AttributeError',_exception_message="'NoneType' object has no attribute 'split'")
