Vim, NERDtree not recovered in session restore

Question

When I have a NERDtree panel and I save a Vim session (mksession [filename]), then open the session (vim -S filename), the panel is opened and tagged \"NERDtree\" but is not pop

Answer 1

To fix the NERDTress session with session plugin, the new session commands embedded in session plugin: "SaveSession" and "OpenSession" should be used, instead of "mksession" and "source".

According to the session plugin author's comments: Vim’s :mksession command isn’t really compatible with plug-ins that create buffers with generated content and because of this session.vim includes specific workarounds for such plug-ins: •BufExplorer, Project and NERD tree windows are supported; •When shell.vim is installed Vim’s full-screen state is persisted; •The netrw and taglist.vim plug-ins support sessions out of the box.

Maybe it is why we should use the new commands to overcome NERDTree session issue.

For more details, please refer to http://peterodding.com/code/vim/session/.