ESP32-C3 board not recognized in Arduino Core 3.3.4 (3.3.3 works)

[Nenad95M]

Board

ESP32-C3 Super Mini

Device Description

ESP32-C3 Super Mini devboard

Hardware Configuration

No external components are attached.
The board is inserted into a breadboard, but none of the GPIO pins are connected to anything.
The issue also occurs when the board is used without the breadboard.

Version

v3.3.4

Type

Bug

IDE Name

Arduino IDE

Operating System

Ubuntu 24.04.3 LTS

Flash frequency

80 MHz

PSRAM enabled

yes

Upload speed

921600

Description

When using ESP32 Core version 3.3.4, any attempt to compile for
Tools → Board → ESP32 Arduino → ESP32C3 Dev Module
fails immediately with the following error:

Board esp32c3 (platform esp32, package esp32) is unknown
Error compiling for board ESP32C3 Dev Module.

Rolling back the core to 3.3.3 fixes the issue immediately.

Sketch

void setup() {
  Serial.begin(115200);
  delay(2000);
  Serial.println("Ready");
}

void loop() {
  Serial.println("Test");
  delay(1000);
}

Debug Message

Board esp32c3 (platform esp32, package esp32) is unknown
Error compiling for board ESP32C3 Dev Module.

Other Steps to Reproduce

No response

I have checked existing issues, online documentation and the Troubleshooting Guide

• I confirm I have checked existing issues, online documentation and Troubleshooting guide.

[me-no-dev]

This board is tested by CI so it's not possible that it's broken. Something must have gone wrong when you updated the core. I suggest reinstalling it (going back to 3.3.3 and then again to 3.3.4 maybe)