[Sun Feb 25 13:38:52 2018] Processing lolin32 (platform: espressif32; board: lolin32; framework: arduino)
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Verbose mode can be enabled via `-v, --verbose` option
PLATFORM: Espressif 32 > WEMOS LOLIN32
SYSTEM: ESP32 240MHz 288KB RAM (1.25MB Flash)
Library Dependency Finder -> http://bit.ly/configure-pio-ldf
LDF MODES: FINDER(chain) COMPATIBILITY(light)

Collected 33 compatible libraries
Scanning dependencies...
Dependency Graph
|-- <Adafruit Unified Sensor> v1.0.2
|-- <DHT sensor library> v1.3.0
|   |-- <Adafruit Unified Sensor> v1.0.2
|-- <PubSubClient> v2.6
Compiling .pioenvs/lolin32/src/main.o
src/main.cpp:4:25: fatal error: ESP8266WiFi.h: No such file or directory


*********************************************************************
* Looking for ESP8266WiFi.h dependency? Check our library registry!
*
* CLI  > platformio lib search "header:ESP8266WiFi.h"
* Web  > https://platformio.org/lib/search?query=header:ESP8266WiFi.h
*
*********************************************************************

compilation terminated.
Compiling .pioenvs/lolin32/libae1/DHT sensor library_ID19/DHT_U.o
Compiling .pioenvs/lolin32/libee3/pubsubclient/PubSubClient.o
Archiving .pioenvs/lolin32/libFrameworkArduinoVariant.a
*** [.pioenvs/lolin32/src/main.o] Error 1
Indexing .pioenvs/lolin32/libFrameworkArduinoVariant.a
========================== [ERROR] Took 2.94 seconds ==========================