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Board Package Not Installed

Arduino Microcontroller Board

Severity: Moderate

Source: OnlyErrorCodes.com — Every error code. One place.

Arduino Board Package Missing — How to Fix

What Does This Error Mean?

If your board does not appear in the Arduino IDE board selector, its support package is not installed. Open the Boards Manager (Tools > Board > Boards Manager), search for the board name, and click Install.

Affected Models

  • Arduino Uno
  • Arduino Nano
  • Arduino Mega 2560
  • ESP32 boards
  • ESP8266 boards
  • Raspberry Pi Pico

Common Causes

  • Board package not installed in the Boards Manager
  • Third-party board URL not added to IDE preferences
  • Boards Manager package for this architecture not downloaded
  • IDE installed fresh without any optional board packages
  • Package corrupted or partially downloaded

How to Fix It