Lua 5.3认为socket.lua在实际存在的目录中不存在

Question

Here's a screenshot: https://drive.google.com/open?id=0B4Dqo44FM648VTVKVzBKSERldGc

I would like to have fun contributing to the development of an open source game but this problem is preventing me from doing this.

My LuaRocks install is configured for Lua 5.3 and is set to use MinGW's build tools. My OS is Windows 10 64 bit.

My Lua 5.3.2 binaries were provided by this website (lua-5.3.2_Win64_bin.zip).

If you have an idea for a possible cause please post it.

Answer 1

You have to resolve environment variables manually:

os.getenv (varname)

Returns the value of the process environment variable varname, or nil if the variable is not defined.

So, in your case you need to obtain the %APPDATA% path first:

os.getenv("APPDATA")

Returns: C:\\Users\\USERNAME\\AppData\\Roaming

When searching for packages to load, Lua uses a pre-defined list of folders to search in. This list is defined in package.path which is a semicolon-delimited (;) string. To add a new folder, you must append it's path to package.path :

package.path = package.path .. ";" .. NEWFOLDER .. "\\?.lua"

Finally, your complete solution is this:

package.path = package.path .. ";" .. os.getenv("APPDATA") .. "\\luarocks\\share\\lua\\5.3\\?.lua"
local s = require("socket")

Answer 2

“ Lua不会在package.path中扩展环境变量引用，因此％APPDATA％将不起作用。您需要真实的路径。LuaRocks安装脚本应该说：“请注意，上述路径中的％APPDATA％元素是特定于用户，并且必须用其实际值替换。”-siffiejoe