My Lua dissector isn’t finding the CRC32 module

Question

Hi, I have a .lua file. Can I get please instructions how to add it the wireshark and decode my message correctly (I have wireshark with version 1.8.6)?

I added it to my personal plugins folder and this is the message code every time I launch the program.

Lua: Error during loading:
 [string "C:\Users\morton.sherwood\AppData\Roaming\Wi..."]:7: module 'CRC32' not found:
    no field package.preload['CRC32']
    no file '.\CRC32.lua'
    no file 'C:\Program Files (x86)\Wireshark\lua\CRC32.lua'
    no file 'C:\Program Files (x86)\Wireshark\lua\CRC32\init.lua'
    no file 'C:\Program Files (x86)\Wireshark\CRC32.lua'
    no file 'C:\Program Files (x86)\Wireshark\CRC32\init.lua'
    no file '.\CRC32.dll'
    no file '.\CRC3251.dll'
    no file 'C:\Program Files (x86)\Wireshark\CRC32.dll'
    no file 'C:\Program Files (x86)\Wireshark\CRC3251.dll'
    no file 'C:\Program Files (x86)\Wireshark\clibs\CRC32.dll'
    no file 'C:\Program Files (x86)\Wireshark\clibs\CRC3251.dll'
    no file 'C:\Program Files (x86)\Wireshark\loadall.dll'
    no file 'C:\Program Files (x86)\Wireshark\clibs\loadall.dll'

Thank you

Accepted Answer

require('CRC32')

As the documentation for require says, it loads the module with the name passed to it as an argument. This means that you will need to have a CRC32 module available; either you don't have it available, in which case you will have to add it to your Lua installation, or it's not in one of the directories in which it's searching, in which case you will somehow have to configure Lua to search for it where it's loaded.