vim “modifiable” is off

Question

Trying to create a new file with nerd tree. I hit the a key to create a new file and i get the message:

E21: Cannot make changes, \'Modifiable\' is of

Answer 1

If you want to happen a file in NERDTree, you need to hit "m" (for menu) then "a". Simply entering "a" in NERDTree buffer will be interpreted as "modify NERDTree buffer". Adding :ma will make NERDTree buffer modifiable, but this wont create new files for you, it will lead to inconsistent info between what NERDTree display and your actual file hierarchy.