When I open vim again and session start to restore I receive the following error:

Error detected while processing VimEnter Autocommands for "*"..function AutosessRestore[11]..script /Users/diegomarangoni/.vim/autosess/
%Users%diegomarangoni%projects%myproject.vim[17]..WinLeave Autocommands for "NERD_tree_*":
E121: Undefined variable: b:NERDTree

I have two lines in my .vimrc file that are not active when autosess restores a session. I’ve tried manually deleting the sessions and starting over with no success. If I start a fresh vim instance with no saved session and open a file where these would apply (like an html file), it works fine. When I then quit so that autosess saves the session, and restore it, they are not active. I can at that point source the .vimrc file and it will apply them, but they’re never active when a session is restored no matter what.

highlight Comment cterm=italic gui=italic
highlight htmlArg cterm=italic gui=italic

It's saving the session properly. But doesn't auto source the session file.

Im new to vim so forgive me if this is obvious, but I get some red text that pops up when closing vim and it is so fast I can't read it, but when I re-open vim the session isn't saved. I am getting the red text is an error, but obviously I couldn't read it.

Am I doing something wrong here?

Thanks

This plugin supports persisting windows and tabs; it would be really nice if it supported persisting buffers as well! Thank you!

With autosess enabled, starting vim in readonly from stdin does not work as expected.
echo "abc" | vim -R -

The content of stdin was discarded / replaced with session loading.

However, without readonly options including -R or set nomod, the content of stdin was preserved.

I have been trying to set autosess_dir in _vimrc file in GVim. And it keeps giving me this errors.

Here are things I tried without success.

let autosess_dir=$$USERPROFILE/vimfiles/sessions/
let autosess_dir=~/vimfiles/sessions/
let autosess_dir=c:\\users\username\\vimfiles\sessions

It gives the following error.

E121: Undefined variable: vimfiles
E15: Invalid expression: $USERPROFILE/vimfiles/sessions/

When exiting vim with the very popular NERDTree file tree explorer active the session vim-plugin-autosess saves and then tries to restore complains that buffer name already exists.

Subsequent restores don't complain but there is a screen split with an empty buffer where NERDTree would normally be.

Is it possible to add some type of exclude functionality for the NERDTree buffer?