Keep getting this error when running this code - discord.js

Question

I'm trying to make verification channel where users will verify themselves using reactions.
I tried fetching messages from the verify channel and trying to do this code:
const mReaction = new Discord.MessageReaction();
const message = mReaction.message;
const verified = 'verifiedID';
const unverified = 'unverifiedID';
if(message.reactions.cache.find(r => r.emoji === '✅') || message.channel.id == 'channelID'){
message.member.roles.add(verified);
message.member.roles.remove(unverified);
}
When I run the code I keep getting:
TypeError: Cannot read property 'me' of undefined
at new MessageReaction (D:\Users\Rastik\Desktop\discord bot\node_modules\discord.js\src\structures\MessageReaction.js:35:20)
at Object.<anonymous> (D:\Users\Rastik\Desktop\discord bot\main.js:98:20)
at Module._compile (internal/modules/cjs/loader.js:1200:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:1220:10)
at Module.load (internal/modules/cjs/loader.js:1049:32)
at Function.Module._load (internal/modules/cjs/loader.js:937:14)
at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:71:12)
at internal/main/run_main_module.js:17:47
So I would like to ask you guys to help me, If anyone would be that awesome to try help me I would really appreciated.

Answer 1

The error is that you are creating a MessageReaction out of thin air,
const mReaction = new Discord.MessageReaction();
If you look at the docs, it shows you would need the client, the data and the message.
https://discord.js.org/#/docs/main/stable/class/MessageReaction
const message = mReaction.message how would it know which message the reaction refers to? You don't define anything
All in all this code makes no sense.
If you want to do a verification message reaction system you will need to listen to the messageReactionAdd event, but since that event listens to only cached messages you will need to either use raw event or partials
I will show the partial way.
Main file:
const client = new Client({ partials: ["REACTION", "MESSAGE"]});
And then you will need to handle the messageReactionAdd event somehow,
client.on("messageReactionAdd", async (reaction, user) => {
if(reaction.partial) await reaction.fetch();
//you should have one message with the checkmark emoji, that users need to press
//to join, insert the msg id here
if(reaction.message.id !== "id") return;
//now you validate the user, if they have the role already return if not add.
});