Nerdtree causes internal Vim error: E315 ml_get: invalid lnum

[jdavis]

Here's a screenshot of the error that I'm getting:

It only happens when I'm in Visual line select and use J/K to increase/decrease the size of the selection. This will pop up and make Vim spaz out.

After the spazzing, NERDTree will then lose all of its coloring.

[gzeronet]

My solution is:
'' in .vimrc
let g:NERDTreeWinPos = "right"
''
it works for me.

[jdavis]

I haven't had this error in a very long time so I'm closing this.

[firedev]

I do have it now, when I try to drag the Nerdtree window. Setting Nerdtree to right doesn't change anything.

[firedev]

Fixed it by adding set ttymouse=xterm2