Arduino: Board d1_mini (platform esp8266, package esp8266) is unknown after upgrade to 2.4.0-rc2
Basic Infos
Hardware
Hardware: ESP8266
Core Version: 2.4.0-rc2
Description
I upgraded to 2.4.0-rc2 to get the KRACK fix by replacing the URL in Arduino IDE preferences and installing it via Boardmanager. If I try to recompile, I now get the error:
Board d1_mini (platform esp8266, package esp8266) is unknown
Error compiling for board WeMos D1 R2 & mini.
Settings in IDE
Module: WeMos D1 R2 & mini
Flash Size: 4MB
CPU Frequency: 80Mhz
reibuehl
All 5 comments
After deleting the folder "packages" under \Users\
reibuehl
on 3 Nov 2017
👍6
I had the same issue. Solved it works now. Thanks!!
Tussini69
on 15 Apr 2018
Same issue here, and this worked for me. Thank you!
afortiori85
on 24 Oct 2018
Thanks works for me.
Nikospax
on 14 May 2019
You fixed it.
wlraider70
on 6 Jan 2020
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Most helpful comment
After deleting the folder "packages" under \Users\\AppData\Local\Arduino15 and then reinstalling all previously installed board packages via the Board Manager, the error is gone.