Regarding ESP8266WiFi.h

[muratangi]

Greetings,

On Arduino version 1.6.9, I manage to install ModbusIP library and compile provided examples.

I would like to implement modbus_esp8266.
Unfortunately I have faced some issues.
When I try installing modbus-esp8266 via >Sketch>Include Library>add. ZIP library, Arduino ide complains with the followings:

Arduino: 1.6.9 (Windows 7), Board: "NodeMCU 1.0 (ESP-12E Module), 80 MHz, 115200, 4M (3M SPIFFS)"
Specified folder/zip file does not contain a valid library

What can be possible reason of this error message?

Regards,

[mutexlocker]

Hi,Copy ModBus and ModbusIP_ESP8266 folders to library Folder of Arduino IDE