Register Commands failed: DiscordAPIError[10002]: Unknown Application

[Bizarrus]

Part of the guide or code sample the question is about

I'm using 1:1 the following Code from the Guide:

import { REST, Routes } from 'discord.js';

const commands = [
  {
    name: 'ping',
    description: 'Replies with Pong!',
  },
];

const rest = new REST({ version: '10' }).setToken(TOKEN);

try {
  console.log('Started refreshing application (/) commands.');

  await rest.put(Routes.applicationCommands(CLIENT_ID), { body: commands });

  console.log('Successfully reloaded application (/) commands.');
} catch (error) {
  console.error(error);
}

Following Error appears:

Caution

DiscordAPIError[10002]: Unknown Application
at handleErrors (C:\Users\APRE201\Desktop\AWS\node_modules@discordjs\rest\dist\index.js:748:13)
at process.processTicksAndRejections (node:internal/process/task_queues:105:5)
at async SequentialHandler.runRequest (C:\Users\APRE201\Desktop\AWS\node_modules@discordjs\rest\dist\index.js:1149:23)
at async SequentialHandler.queueRequest (C:\Users\APRE201\Desktop\AWS\node_modules@discordjs\rest\dist\index.js:980:14)
at async _REST.request (C:\Users\APRE201\Desktop\AWS\node_modules@discordjs\rest\dist\index.js:1293:22)
at async file:///C:/Users/APRE201/Desktop/AWS/main.js:72:21 {
requestBody: {
files: undefined,
json: { name: 'ping', description: 'Replies with Pong!' }
},
rawError: { message: 'Unknown Application', code: 10002 },
code: 10002,
status: 404,
method: 'PUT',
url: 'https://discord.com/api/v10/applications/1376832556951015400/commands'
}

The CLIENT_ID is set from https://discord.com/developers/applications//oauth2:

The Client-ID is the same like the Application-ID:

Question

Why do I get an 'Unknown Application' via the REST-API?

Via Client, which connects to WebSocket, the token works without any problems.

[Jiralite]

You get an unknown application because the application does not exist. Before you say "But it does", you're using the wrong application id:

[Bizarrus]

The application.id is not mine on the error, but this error will be listen with this id, i dont know why!

Originally i've using

Routes.applicationCommands(1376832556951015425)

And originally i've tried to use:

/applications/1376832556951015425/commands

instead of Routes.applicationCommands.

The id presented in the error comes not from my code, i dont know where the id is comming from!

[Jiralite]

Do Routes.applicationCommands("1376832556951015425"). 1376832556951015425 is too big to represent in JavaScript, so it is prone to precision loss.

[Bizarrus]

Okay, that was the issue! Big Thanks!