Discord.js Role Reactions

Question

TypeError: reaction.message.guild.roles.cache is not a function.

I don't understand what's wrong in my code below:

client.on('messageReactionAdd', (reaction, user) => {
 if (user.bot) return;

 var roleName = reaction.emoji.name;
 console.log(roleName);
 var role = reaction.message.guild.roles.cache(
  (role) => role.name.toLowerCase() === roleName.toLowerCase()
 );
 var member = reaction.message.guild.members.find(
  (member) => member.id === user.id
 );

 if (member.roles.has(role.id)) {
  member
   .removeRole(role.id)
   .then((member) => {
    console.log(
     'Removed' + member.user.username + ' from the ' + role.name + ' role.'
    );
   })
   .catch((err) => console.error);
 } else {
  member
   .addRole(role.id)
   .then((member) => {
    console.log(
     'Added ' + member.user.username + ' to the ' + role.name + ' role.'
    );
   })
   .catch((err) => console.error);
 }
});

Answer 1

If you are trying to react to uncached messages you need to add partials.

You can find more information here: Partials

I would recommend asking the guys over on Discord.js