在 Windows 10 下的 OpenResty ，报错：module ‘lib.redis’ not found: no field package.preload[‘lib.redis’]

1、运行 lua 程序，报错：500 Internal Server Error openresty/1.19.9.1。如图1

图1

2、查看 Nginx 日志文件，morefunresty.dev.chinamcloud.cn.error.log，module ‘lib.redis’ not found: no field package.preload[‘lib.redis’]。如图2

图2

2021/09/22 17:13:14 [error] 39648#39764: *272 lua entry thread aborted: runtime error: E:/wwwroot/msi_main/resty/app/mods/draw/prizes.lua:10: module 'lib.redis' not found:
	no field package.preload['lib.redis']
	no file './site/lualib/lib/redis.ljbc'
	no file './site/lualib/lib/redis/init.ljbc'
	no file './lualib/lib/redis.ljbc'
	no file './lualib/lib/redis/init.ljbc'
	no file './site/lualib/lib/redis.lua'
	no file './site/lualib/lib/redis/init.lua'
	no file './lualib/lib/redis.lua'
	no file './lualib/lib/redis/init.lua'
	no file './lib/redis.lua'
	no file 'C:/openresty-1.19.9.1-win64/lualib/lib/redis.lua'
	no file 'C:/openresty-1.19.9.1-win64/lua/lib/redis.lua'
	no file 'C:/openresty-1.19.9.1-win64/lua/lib/redis/init.lua'
	no file './site/lualib/lib/redis.so'
	no file './lualib/lib/redis.so'
	no file './lib/redis.dll'
	no file 'C:/openresty-1.19.9.1-win64/lualib/lib/redis.so'
	no file 'C:/openresty-1.19.9.1-win64/lib/redis.dll'
	no file 'C:/openresty-1.19.9.1-win64/loadall.dll'
	no file './site/lualib/lib.so'
	no file './lualib/lib.so'
	no file './lib.dll'
	no file 'C:/openresty-1.19.9.1-win64/lualib/lib.so'
	no file 'C:/openresty-1.19.9.1-win64/lib.dll'
	no file 'C:/openresty-1.19.9.1-win64/loadall.dll'
stack traceback:
coroutine 0:
	[C]: in function 'require'
	E:/wwwroot/msi_main/resty/app/mods/draw/prizes.lua:10: in main chunk, client: 127.0.0.1, server: morefunresty.dev.chinamcloud.cn, request: "GET /lua/api/draw/prizes?act_id=a0535444-283c-481e-9bcd-b0673a28f3ca HTTP/1.1", host: "morefunresty.dev.chinamcloud.cn"
2021/09/22 17:13:16 [error] 39648#39764: *273 lua entry thread aborted: runtime error: E:/wwwroot/msi_main/resty/app/mods/draw/prizes.lua:10: module 'lib.redis' not found:
	no field package.preload['lib.redis']
	no file './site/lualib/lib/redis.ljbc'
	no file './site/lualib/lib/redis/init.ljbc'
	no file './lualib/lib/redis.ljbc'
	no file './lualib/lib/redis/init.ljbc'
	no file './site/lualib/lib/redis.lua'
	no file './site/lualib/lib/redis/init.lua'
	no file './lualib/lib/redis.lua'
	no file './lualib/lib/redis/init.lua'
	no file './lib/redis.lua'
	no file 'C:/openresty-1.19.9.1-win64/lualib/lib/redis.lua'
	no file 'C:/openresty-1.19.9.1-win64/lua/lib/redis.lua'
	no file 'C:/openresty-1.19.9.1-win64/lua/lib/redis/init.lua'
	no file './site/lualib/lib/redis.so'
	no file './lualib/lib/redis.so'
	no file './lib/redis.dll'
	no file 'C:/openresty-1.19.9.1-win64/lualib/lib/redis.so'
	no file 'C:/openresty-1.19.9.1-win64/lib/redis.dll'
	no file 'C:/openresty-1.19.9.1-win64/loadall.dll'
	no file './site/lualib/lib.so'
	no file './lualib/lib.so'
	no file './lib.dll'
	no file 'C:/openresty-1.19.9.1-win64/lualib/lib.so'
	no file 'C:/openresty-1.19.9.1-win64/lib.dll'
	no file 'C:/openresty-1.19.9.1-win64/loadall.dll'
stack traceback:
coroutine 0:
	[C]: in function 'require'
	E:/wwwroot/msi_main/resty/app/mods/draw/prizes.lua:10: in main chunk, client: 127.0.0.1, server: morefunresty.dev.chinamcloud.cn, request: "GET /lua/api/draw/prizes?act_id=a0535444-283c-481e-9bcd-b0673a28f3ca HTTP/1.1", host: "morefunresty.dev.chinamcloud.cn"

3、编辑 Nginx 文件，添加 lua_package_path，以配置 openresty 的文件寻址路径

# set search paths for pure Lua external libraries (';;' is the default path):
lua_package_path 'E:/wwwroot/msi_main/resty/app/common/lib/?.lua;;';

server {
}

4、重启 Nginx 服务器后，仍然报同样的错误。查看 Nginx 日志，新增一行：no file ‘E:/wwwroot/msi_main/resty/app/common/lib/lib/redis.lua’，确认 ?.lua 被替换为：lib/redis.lua，自动增加了一级目录：/lib

2021/09/22 18:47:41 [error] 42716#42404: *304 lua entry thread aborted: runtime error: E:/wwwroot/msi_main/resty/app/mods/draw/prizes.lua:10: module 'lib.redis' not found:
	no field package.preload['lib.redis']
	no file 'E:/wwwroot/msi_main/resty/app/common/lib/lib/redis.lua'
	no file './site/lualib/lib/redis.ljbc'
	no file './site/lualib/lib/redis/init.ljbc'
	no file './lualib/lib/redis.ljbc'
	no file './lualib/lib/redis/init.ljbc'
	no file './site/lualib/lib/redis.lua'
	no file './site/lualib/lib/redis/init.lua'
	no file './lualib/lib/redis.lua'
	no file './lualib/lib/redis/init.lua'
	no file './lib/redis.lua'
	no file 'C:/openresty-1.19.9.1-win64/lualib/lib/redis.lua'
	no file 'C:/openresty-1.19.9.1-win64/lua/lib/redis.lua'
	no file 'C:/openresty-1.19.9.1-win64/lua/lib/redis/init.lua'
	no file './site/lualib/lib/redis.so'
	no file './lualib/lib/redis.so'
	no file './lib/redis.dll'
	no file 'C:/openresty-1.19.9.1-win64/lualib/lib/redis.so'
	no file 'C:/openresty-1.19.9.1-win64/lib/redis.dll'
	no file 'C:/openresty-1.19.9.1-win64/loadall.dll'
	no file './site/lualib/lib.so'
	no file './lualib/lib.so'
	no file './lib.dll'
	no file 'C:/openresty-1.19.9.1-win64/lualib/lib.so'
	no file 'C:/openresty-1.19.9.1-win64/lib.dll'
	no file 'C:/openresty-1.19.9.1-win64/loadall.dll'
stack traceback:
coroutine 0:
	[C]: in function 'require'
	E:/wwwroot/msi_main/resty/app/mods/draw/prizes.lua:10: in main chunk, client: 127.0.0.1, server: morefunresty.dev.chinamcloud.cn, request: "GET /lua/api/draw/prizes?act_id=a0535444-283c-481e-9bcd-b0673a28f3ca HTTP/1.1", host: "morefunresty.dev.chinamcloud.cn"

5、编辑 Nginx 文件，添加 lua_package_path，以配置 openresty 的文件寻址路径，删除：/lib

# set search paths for pure Lua external libraries (';;' is the default path):
lua_package_path 'E:/wwwroot/msi_main/resty/app/common/?.lua;;';

server {
}

6、运行 lua 程序，不再报错。如图3

图3