[英]Ocaml utop library paths, Core module
I am attempting to use the Core
module in utop
, as originated by Jane Street and installed using opam
. 我试图在utop
使用Core
模块,由Jane Street创建并使用opam
安装。
Here's the problem 这是问题所在
utop # open Core.Std;;
Error: Unbound module Core
utop
does not seem to have the path to the Core
module. utop
似乎没有Core
模块的路径。
How do you specify a path that can be found by utop
to access the Core
module? 如何指定utop
可以访问Core
模块的路径? Is there a utop
init file that specifies library paths ? 是否有指定库路径的utop
init文件?
I have the same error message from the OCaml 4.01.0 interpreter. 我从OCaml 4.01.0解释器得到相同的错误消息。
The only way I can avoid this error is actually changing directory to /Users/myname/.opam/system/lib/core
. 我可以避免此错误的唯一方法是将目录更改为/Users/myname/.opam/system/lib/core
。
I had the same problem, the directions here got it working for me. 我有同样的问题,这里的指示让它适合我。
https://github.com/realworldocaml/book/wiki/Installation-Instructions#setting-up-and-using-utop https://github.com/realworldocaml/book/wiki/Installation-Instructions#setting-up-and-using-utop
add the following lines to your ~/.ocamlinit file 将以下行添加到〜/ .ocamlinit文件中
#use "topfind";;
#thread;;
#camlp4o;;
#require "core.top";;
#require "core.syntax";;
Assuming that you have core properly installed through opam: 假设您通过opam正确安装了核心:
# require "core";;
open Core.Std;;
Should work. 应该管用。
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