F3 node.ungroup_group_tree operator poll func error

Created by: 1234EMMM

Problem statement

Is the problem installation related? then visit this page first <https://github.com/nortikin/sverchok#troubleshooting-installation-errors>_.

For any other issues, or if the installation still failed; Please describe the problem here.

poll error

When using F3, there will be an error prompt

1.1