Nexus
Nexus•4mo ago

PEM Base64 Error while using mineflayer NPM Package

Hello. I am interested in using Deno to build a Minecraft player bot. I used the minelayer package and the Deno runtime. I wrote simple code that should log in to the player using Microsoft authentication. I am using Deno version 2.0.3, which is running on aarch64 Linux. I am also running mineflayer version 4.23.0. I am currently attempting to run this code: I put placeholders for privacy sake, however I don't believe that should matter too much. 
import mineflayer from "mineflayer";

console.log("Hello, world!");
const bot = mineflayer.createBot({
    host: "[remote ip]",
    port: 25565,
    username: "[username]",
    auth: "microsoft",
    version: "1.20.4",
});

bot.on("login", () => {
    bot.chat("Hello, world!");
});
import mineflayer from "mineflayer";

console.log("Hello, world!");
const bot = mineflayer.createBot({
    host: "[remote ip]",
    port: 25565,
    username: "[username]",
    auth: "microsoft",
    version: "1.20.4",
});

bot.on("login", () => {
    bot.chat("Hello, world!");
});
After authenticating with a Microsoft account. I get this strange error: 
error: Uncaught (in promise) Error: ASN.1 error: PEM error: PEM Base64 error: invalid Base64 encoding
    at Object.publicEncrypt (ext:deno_node/internal/crypto/cipher.ts:221:10)
    at sendEncryptionKeyResponse (file:///home/[username]/.cache/deno/npm/registry.npmjs.org/minecraft-protocol/1.50.0/src/client/encrypt.js:49:52)
    at onJoinServerResponse (file:///home/[username]/.cache/deno/npm/registry.npmjs.org/minecraft-protocol/1.50.0/src/client/encrypt.js:36:11)
    at file:///home/[username]/.cache/deno/npm/registry.npmjs.org/yggdrasil/1.7.0/src/utils.js:73:15
    at Object.runMicrotasks (ext:core/01_core.js:672:26)
    at processTicksAndRejections (ext:deno_node/_next_tick.ts:57:10)
    at runNextTicks (ext:deno_node/_next_tick.ts:74:3)
    at eventLoopTick (ext:core/01_core.js:182:21)
error: Uncaught (in promise) Error: ASN.1 error: PEM error: PEM Base64 error: invalid Base64 encoding
    at Object.publicEncrypt (ext:deno_node/internal/crypto/cipher.ts:221:10)
    at sendEncryptionKeyResponse (file:///home/[username]/.cache/deno/npm/registry.npmjs.org/minecraft-protocol/1.50.0/src/client/encrypt.js:49:52)
    at onJoinServerResponse (file:///home/[username]/.cache/deno/npm/registry.npmjs.org/minecraft-protocol/1.50.0/src/client/encrypt.js:36:11)
    at file:///home/[username]/.cache/deno/npm/registry.npmjs.org/yggdrasil/1.7.0/src/utils.js:73:15
    at Object.runMicrotasks (ext:core/01_core.js:672:26)
    at processTicksAndRejections (ext:deno_node/_next_tick.ts:57:10)
    at runNextTicks (ext:deno_node/_next_tick.ts:74:3)
    at eventLoopTick (ext:core/01_core.js:182:21)
This code works as intended using the latest version of node js, which is 23.0.0-1. Steps to reproduce: 1. Install mineflayer package. deno add npm:mineflayer 2. Write above code. 3. Run script and authenticate. deno run main.ts 4. Observe error.
2 Replies
bartlomieju
bartlomieju•4mo ago
Could you please open an issue in the Deno repo?
Nexus
NexusOP•4mo ago
Done. https://github.com/denoland/deno/issues/26634
GitHub
PEM Base64 Error while using mineflayer NPM Package · Issue #26634 ...
Version: Deno 2.0.3 Hello. I am interested in using Deno to build a Minecraft player bot. I used the minelayer package and the Deno runtime. I wrote simple code that should log in to the player usi...

Did you find this page helpful?