VS Arduino - Uploading Bootloader MightyCore - Error: AVR Part "{build.mcu}" not found

Feb 24^th, 2026 at 8:30pm (UTC)

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VS Arduino › › › Uploading Bootloader MightyCore - Error: AVR Part "{build.mcu}" not found

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Uploading Bootloader MightyCore - Error: AVR Part "{build.mcu}" not found (Read 3294 times)

vm24 Junior Member Offline Posts: 11 Joined: Jan 12^th, 2016	Uploading Bootloader MightyCore - Error: AVR Part "{build.mcu}" not found Jul 17^th, 2018 at 8:08am	Print Post
	Hi all, I'd like to programm a bootloader to AT1284p with Atmelstudio 7 and Visual Micro. Therfore I downloaded the Mighty Core Board Platform with the the Platform Installer of Arduino/ Visual Micro inside Atmelstudio 7. When burning the Bootloader with vMicro > Uploader > Burn Bootloader I get this error meassage: Code Burning a new bootloader Burning bootloader to board 'ATmega1284' using 'STK500 as ISP (MightyCore)' Burn bootloader failed with an exception The uploader process failed Error while burning bootloader. avrdude: Version 6.3, compiled on Dec 16 2016 at 13:33:19 Burn failed Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/ Copyright (c) 2007-2014 Joerg Wunsch System wide configuration file is 8/avrdude.conf" avrdude: AVR Part "{build.mcu}" not found. Valid parts are: m1284 = ATmega1284 [C:\Users\UserName\AppData\Local\arduino15\packages\MightyCore\hardware\avr\1.0.8/avrdude.conf:2506] m1284p = ATmega1284P [C:\Users\UserName\AppData\Local\arduino15\packages\MightyCore\hardware\avr\1.0.8/avrdude.conf:2314] m16 = ATmega16 [C:\Users\UserName\AppData\Local\arduino15\packages\MightyCore\hardware\avr\1.0.8/avrdude.conf:1303] m164a = ATmega164A [C:\Users\UserName\AppData\Local\arduino15\packages\MightyCore\hardware\avr\1.0.8/avrdude.conf:1864] m164p = ATMEGA164P [C:\Users\UserName\AppData\Local\arduino15\packages\MightyCore\hardware\avr\1.0.8/avrdude.conf:1674] m32 = ATmega32 [C:\Users\UserName\AppData\Local\arduino15\packages\MightyCore\hardware\avr\1.0.8/avrdude.conf:1487] m324a = ATmega324A [C:\Users\UserName\AppData\Local\arduino15\packages\MightyCore\hardware\avr\1.0.8/avrdude.conf:2089] m324p = ATmega324P [C:\Users\UserName\AppData\Local\arduino15\packages\MightyCore\hardware\avr\1.0.8/avrdude.conf:1881] m324pa = ATmega324PA [C:\Users\UserName\AppData\Local\arduino15\packages\MightyCore\hardware\avr\1.0.8/avrdude.conf:2073] m644 = ATmega644 [C:\Users\UserName\AppData\Local\arduino15\packages\MightyCore\hardware\avr\1.0.8/avrdude.conf:2106] m644p = ATmega644P [C:\Users\UserName\AppData\Local\arduino15\packages\MightyCore\hardware\avr\1.0.8/avrdude.conf:2297] m8535 = ATmega8535 [C:\Users\UserName\AppData\Local\arduino15\packages\MightyCore\hardware\avr\1.0.8/avrdude.conf:1139]


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Tim@Visual Micro Administrator Offline Posts: 12204 Location: United Kingdom Joined: Apr 10^th, 2010	Re: Uploading Bootloader MightyCore - Error: AVR Part "{build.mcu}" not found Reply #1 - Jul 18^th, 2018 at 10:39pm	Print Post
	Hi There is a fix for this in the visual studio version and the atmel version will follow over the next week or so. https://www.visualmicro.com/forums/YaBB.pl?board=VS_ARDUINO_EXT_RELEASES Thanks


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