Library v2.2.0 to v2.3.0 upgrade within Arduino IDE - boards 'generic' unknown

[electronicsguy]

Basic Infos

Hardware

Hardware: ESP-01
Core Version: 2.3.0

Description

I am using Arduino v1.6.9 on Windows 7 and was using esp8266 library v2.2.0 which was working perfectly. Yesterday, the IDE popped up a message saying the board has an update, so I went ahead and upgraded the library to v2.3.0. Now, I am not able to compile any sketch.

The board selected is "Generic ESP8266 Module", just like before. What is the problem?

Debug Messages

Board generic (platform esp8266, package esp8266) is unknown

Error compiling for board Generic ESP8266 Module.

[igrr]

Please check if this comment helps: #1387 (comment)

[electronicsguy]

@igrr Thanks Ivan! you nailed it. Is the problem with esp8266 library upgrade not doing a cleanup, or a bug in the Arduino boards manager?

[igrr]

esp8266 library doesn't do any cleanup because it's just a set of files which can be compiled for the esp. It doesn't contain any scripts which run on your computer. I suppose it may be an issue with the boards manager for certain upgrade scenarios.