I'm on Alpha 4, too, and was able to install it. However, I ran it as installoptionalpackage -a vim, although I'm not sure the "-a" was really necessary.
Dumb question: were you connected to the internet when you ran the command? It has to get the vim package from online.
Comments
Re: Vim?
I just installed vim on r1a4 ...
What version of Haiku are you using?
Re: Vim?
I'm on Alpha 4, too, and was able to install it. However, I ran it as installoptionalpackage -a vim, although I'm not sure the "-a" was really necessary.
Dumb question: were you connected to the internet when you ran the command? It has to get the vim package from online.