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Library v2.2.0 to v2.3.0 upgrade within Arduino IDE - boards 'generic' unknown #2297
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?
Board generic (platform esp8266, package esp8266) is unknown
Error compiling for board Generic ESP8266 Module.