import std.random fails

[deed]

> You druntime installation is bad due to some cruft left from a 
> previous
> install (the installer obviously needs some work). If you used 
> an installer,
> then uninstall dmd, make sure that it's completely removed, and 
> then reinstall
> it.
>
> If you installed it manually, then make sure that you blow away 
> druntime's
> import directory and then restore it with the current version 
> of those files.
>
> - Jonathan M Davis


Thanks. Had not tried that and it sounds as a probable reason.