Failed to bind server on [0.0.0.0]/19132, is the port free?

[OguzhanUmutlu]

I've tried multiple ports, it says this for all of them.

Error:

Failed to bind server on [0.0.0.0]/19132, is the port free?
project_path\node_modules\raknet-native\lib\RakNet.js:86
    return this.server.listen(packets => {
                       ^

TypeError: Server failed to start
    at Server.listen (project_path\node_modules\raknet-native\lib\RakNet.js:86:24)
    at RakNativeServer.listen (project_path\node_modules\bedrock-protocol\src\rak.js:134:17)
    at Server.listen (project_path\node_modules\bedrock-protocol\src\server.js:109:25)
    at file:///project_path/Main.js:12:14
    at ModuleJob.run (node:internal/modules/esm/module_job:193:25)

My code:

import {createServer} from "bedrock-protocol";

const server = createServer({
    host: "0.0.0.0",
    port: 19132,
    version: "1.20.10",
    motd: {
        motd: "Minecraft Bedrock Server", levelName: "world"
    }
});

await server.listen();

The line that throws the error: https://github.com/extremeheat/node-raknet-native/blob/master/src/RakServer.cpp#L148

[OguzhanUmutlu]

import {Server} from "bedrock-protocol";

const server = new Server({
    host: "0.0.0.0",
    port: 19132,
    version: "1.20.10"
});

await server.listen();

This worked.

[extremeheat]

This error is because the port you want to use, 19132, was not free when you tried to run the program. You can use the netstat command to check what ports are in use.