模块 'cudnn' 没有找到：在 cudnn 中没有找到 LuaRocks 模块

在 Ubuntu 16.04 上按照标准命令安装了 Lua 和其他依赖项：

conda install lua=5.2 lua-science -c alexbw

但是在这一行中我遇到了错误：

require 'cudnn'

错误如下： `

/home/parth/miniconda3/envs/fastai-tf/bin/lua：.../miniconda3/envs/fastai-tf/share/lua/5.2/trepl/init.lua:384: module 'cudnn' not found：在 cudnn 中没有找到 LuaRocks 模块
    no field package.preload['cudnn']
    no file '/home/ubuntu/.luarocks/share/lua/5.2/cudnn.lua'
    no file '/home/ubuntu/.luarocks/share/lua/5.2/cudnn/init.lua'
    no file '/home/parth/miniconda3/envs/fastai-tf/share/lua/5.2/cudnn.lua'
    no file '/home/parth/miniconda3/envs/fastai-tf/share/lua/5.2/cudnn/init.lua'
    no file '/home/parth/miniconda3/envs/fastai-tf/lib/lua/5.2/cudnn.lua'
    no file '/home/parth/miniconda3/envs/fastai-tf/lib/lua/5.2/cudnn/init.lua'
    no file './cudnn.lua'
    no file '/home/parth/.luarocks/share/lua/5.2/cudnn.lua'
    no file '/home/parth/.luarocks/share/lua/5.2/cudnn/init.lua'
    no file '/home/ubuntu/.luarocks/lib/lua/5.2/cudnn.so'
    no file '/home/parth/miniconda3/envs/fastai-tf/lib/lua/5.2/cudnn.so'
    no file '/home/parth/miniconda3/envs/fastai-tf/lib/lua/5.2/loadall.so'
    no file './cudnn.so'
    no file '/home/parth/.luarocks/lib/lua/5.2/cudnn.so'
stack traceback:
    [C]：in function 'error'
    .../miniconda3/envs/fastai-tf/share/lua/5.2/trepl/init.lua:384：in function'require'
    src/train.lua:6：in main chunk
    [C]：in function 'dofile'
    ...da3/envs/fastai-tf/lib/luarocks/rocks/trepl/scm-1/bin/th:145: in main chunk
    [C]: in ?

`

尝试使用 luarocks install cudnn 命令安装 cudnn，但是出现了以下输出：

Error: No results matching query were found.

该如何解决这个依赖问题。